English Grammar: Negative Prefixes – “un”, “dis”, “in”, “im”, “non”

Very interesting… lesson :-D
8 replies correct out of 9
Thanks, Adam ;-)

Antonella

Really interesting. Read my profile….

Luke

Challenging topic for a lesson! Isn’t there any rules to use these prefixes propperly?

Do we have to develop a “feeling” abou the language in order to use them correctly?

Oh Gosh! That provides plenty of food for thought Adam.

Engaging lesson Adam, but at the same time a bit complicated.

Regards

Regino

Hi, I’m from Mongolia. I’d like to improve my English. If you want, you can contact with me. Let’ s to be friends for Improving English.

Onya

For all people here Ladies and Gentlemen I hope there is anybody wants to practice her/his English with me voice chat :)
my Skype is khalid_3adel
Regards

MONSTERO

yes , I want to improve my English so I am looking for person who can talk to me by skype or viber

6001234

Fantastic lesson!
I’m looking forward to watching your advanced suffixes lesson. Sorry, What do you mean by saying “novel books”? Is like (Harry Potter, Lord of the rings) books?
Cheers
Thiago

LEARNER

Hi Thiago,

Yes, those are good books. They don’t have to be fantasy, though those are good too ;)

Adam

Hello. I am new to this website. Where should I start?

Flappy0000

That was pretty good Adam. I’ve always had a hardtime understanding all those “boring buds”. lol

Thanks for that great lesson.

Rodrigo83

i found this very difficult but i get 9/9

trk2t

Oh dear my score is awful it is useful lesson but It is hard for me. Thanks Adam

Ukrit

Prefixes are interesting. Thank you, Adam :)

Happy04

Adam you are awesome.Good lesson as always.
Congratulations!

alainaldo

10 out of 10! Thanks Adam!

shinoutoshi

do not lie! There were only nine questions.

emo53

“Do not lie”

Laughing out loud here …

Fellipi Henry

you liar

takakadashi

Thank yoy very much Adam, this is a very good lesson.
You know, I many times think about the fact that in my language(italian), there is many “rules” that really are not rules, that I use correctly but, I don’t undestand why.
Yes, I’m agree with you, it’s just about feeling and reading, in this case, is very important for improve itself, as much as films are important for pronunciation.
So, i like this lesson, and I got 100 in the test, so, I’m happy for this.
Thank you man :)

SimoneTruglia

Tons of thanks dear Adam. I especially enjoy your pronunciation, and teaching style. I wish you good health and productive activities regarding English teaching.

SahibKazim

Very good lesson Adam!, more words to add to my list, thanks so much!

acidkike

Thanks for the lessons,, it was really great. Anyway i would be really grateful if you could make a lesson about “Apparently” “Subsequently” “Reportedly” “Presumably” Many thanks Adam :)

SAAB87

Hi Saab87,

That’s probably a little too focused for a lesson. so:

apparently = seems like, looks like. We say this when we don’t want to make a factual statement.
subsequently = after this
reportedly = someone else said this
presumably = it’s a guess prediction, without fact

Hope this helps.

Adam

Thank you ever so much Adam. You’re very helpful. Your method of teaching is greatly appreciated by me, thanks again, cheers mate :)

SAAB87

it not so easy!

Arthur

6/9 Hard one. Again, I did it and always with you. Normally, I understand when I ought to use this prefixes, or the meaning of them in a sentence, but the responses to the quiz I gave a shoot on my own foot. 6/9 argh….it hurt very

Jorge Pedroso

great lesson , keep up Adam, you are helping alot

kingbode

Adam is my favourite male teacher here

PolinaPony

mine too

Rodrigo83

Adam u are the best I understand ur English very well.

sacia

What about stress changing patterns? Sometimes stress shifts depending on whether the word you form using these preffixes is a noun or an adjective – though it might be quite erratic. You should’ve mentioned a thing or two about this; otherwise, an excellent lesson.

soarq

Good point Soarq. I’ll keep it in mind net time :)

Adam

9 out of 9 ! Thank you Adam. As always you are very clear and brilliant !

lorenzo1897

thanks so much

ryszhan

I GOT 78 (7 out 9). Good Job Adam. And you are right, we must read novels to feel the language. Thank you.

roneysantos

Thank you Adam…. You did very clearly, and we do appreciate that. I don’t find any question to ask because you’re so great…god bless you.

all the best to you

frankyforlife

my score is 9. it is really useful for me. thanks.

serkan5309

hallo sir
i’ve some question about ielts reading and writing strategy. i need a very sharp tips about reading passages. how do i consume my time during exam. i mean i need detailing.
and yes im almost very clear about writing tips through your videos, those are really fabulous, and thanks for those lessons.
take care.

anyweabhasr

Hi Any,

Here are a few more tips:
http://writetotop.com/tests/ielts/reading

I hope these help. I will make more videos about IELTS as well.

Good luck :)

Adam

Great lesson

Luke

thanks adam very good lessen

dreamtravel

Fist time I’ve been studied it! Got 7 of 9, not to bad. Thank you Adam!

Josy Alves

I agree with you Josy! That’s a terrific score for a tough lesson.

Haven’t you studied prefixes before Josy? How come? Well, there’s always a first time.

Good luck with your English.

Regino

Thanks for the interesting lesson. You are a good teacher.

Blue

Thanks Adam :)

fkaratas

Hi teacher,as usually,your lessons are very useful,furthermore your pronunciation is so clearly.Thank you

fatihaeng

Thank you so much Adam

younes.younes

Thank very much Adam for your videos, all of them are very helpful and I’m always looking forward to watching a new video made by you because your explanations are very straightforward and fun as well. I wanted to ask you to do a lesson on prepositions such us “under, beneath, underneath, below, over, above, on top of, upon” because sometimes they are a little bit confusing. Maybe for you as english native speakers isn’t hard to use them in a sentence, you don’t think about what preposition use, but for me and some other people it’s a little difficult since in many cases the word has just one meaning in our language like the case of “under, beneath, underneath, below”, all of them mean “debajo de” or “abajo” in spanish for example (my mother language). Either way whether you reply to this request or not, I just want you know that I’m really grateful to all teachers from “EngVid” because of your help with English learning.

Dick95

Thank you Dick95. I’ll see what I can do about these. It’s a good point you make. :)

Adam

Thanks a lot,Adam!It woud be great to learn more about slight differences in the meanings.

anton m

i lick it

Sunil kumar

very intersenting lesson i made some mistakes while i was doing practice questions thnx teacher looking forward to watch another more videos

yasinabdi

Ununderstandable is a word:
http://en.wiktionary.org/wiki/ununderstandable

talombo

I’m afraid, despite “Wiktionary is a multilingual free dictionary, being written collaboratively on this website by people from around the world. Entries may be edited by anyone!” http://en.wiktionary.org/wiki/Wiktionary:Welcome,_newcomers
and despite neither talombo, nor I know, who was that Anyone who wrote the article talombo refered to, I could add some more respectable sources, showing the word ununderstandable exists:

http://www.merriam-webster.com/dictionary/ununderstandable

http://www.macmillandictionary.com/open-dictionary/entries/ununderstandable.htm

arbatov

Anyway, thanks a lot. The lesson is tremendous!

arbatov

Fair enough Talombo. Though, to be fair, you would be a little hard pressed to find this word used in print in Western publications(unless it’s quoting someone).

I agree with Arbatov too: wiktionary isn’t the best place to study English. ;)

Adam

It’s easy to explain. The word “ununderstandable” is a term in the science of psychology. So, it is in the nomenclature of this science. I think if I am interested in the math and the physics, I’m not obliged to know the nomenclature of psychology. Do you agree with me?

urs68

So, I voted or “not understandable” as a word combination of general literary English.

urs68

Thanks a lot

sudawan

Thank you! I love your lessons

carlos 2138

Thank you Mr.Adam I really benefited from this lesson.
I have a question there are lots of verb mean find out for example figure out and so on, so could you tell me those verbs and what is the differences between them and what is the correct use for them??!!

MATRIX1

Hi Matrix,

Here is a good place to find synonyms:
http://www.thesaurus.com/browse/find+out

Hope this helps :)

Adam

It’s a great lesson. Solve my questions. Thanks a lot.

Menghan

Easy, but very helpful. Thank you, Adam!

ElsaFrost

Thanks for this awesome video. I can not understand only the difference between disorganized and unorganized. I have seen this sentence that the meeting was disorganized.Can we refer disorganized also to things?

Nargiz1997

Hi Nargiz,

Yes, you can. A company can be disorganized, a textbook, a website, etc.

Adam

I am happy to have made a good score 6 out 9. Not bad!!

edilsonsozinho

I get 5 Adam u.u I have to learn more u.u

asnery

Great lesson! I learn a lot in just 15 minutes.

lupikepi

Thank you.

pafsilipoclub

Thank you Adam for this lesson.

KATRIN777

A lot of information in this lesson! But it is very interesting. Thanks Adam!

Sidney

It was great lesson! Thanks,Adam.

MOHAMMED5555

It’s a great lesson. Thanks Adam :)

cesarbim

Thanks! We must read more. It’s a rule.

vasil

thanks so much

layla2020

Two thumbs up for this lesson. It was very interesting and a new understanding for me. A million thanks!

Lou

Thank you very much, Adam! Your lesson is really useful for preparing for the State exam ;)

Svetlana111

Thanks Mr.Adam :) !!

Yasmin

Thankyou Adam. :)

mmalam109@gmail.com

Hello!
Kindly may you explain the Direct and Indirect speech in the grammar language.

Noor Ali Nazary Khadim

Hi Noor,

Check out Benjamin’s lesson:
https://www.engvid.com/grammar-reported-speech-indirect-speech/

Adam

I can’t reach to youtube.

Noor Ali Nazary Khadim

I think your government or internet company might be blocking Youtube. You may have to use a VPN or something like the Tor browser.

engVid Moderator

Thanks Adam , 5 out 9 it’s not enought , i have to study more.

andrea68

thank you it’s a good lesson

roka

hi adam

I would highly recommend the next lesson to be about the differences between who , whom and whose

I’m still confused when to use these words :\

Aradi

Hi Aradi,

I’ll see what i can do ;)

Adam

thanks for the lesson…… i was pretty good at quiz 9 out of 9….

natalipop21

Thanks for the lesson! It was very useful.

Also thanks for the advice about to read novels! I will try to do that often. :)

Nidia Medina

thank you Adam. Really interesting.

Rosemary Dias

It is a good structed lesson about negative prefixes.
Thanks to you Adam.

el ouadgui

Not easy ii can’t understand.

imranmushtaq

Hi folks! I want practice my English if you pursue the same objective let’s get started together, my Skype is rud.zhenya
I look forward to hearing from you, thanks beforehand for your time!

Eugene.Rud

Very interesting, Adam!I’m learning a lot with you! Thanks!

janeinrio

Hey! How come I don’t get to see the videos?

I can do the quiz but I need to study the
explantions. Heeeeeeeeeeeeeeeeeeeeelp me!!!!

Sonia1234

Hi Sonia,

Have you tried watching it on youtube?

Adam

I don’t believe it! I got 9 correct out of 9!!! Hahaha Thanks God! Thanks Adam! :)

Poliana Almeida

It was great lesson, Adam! 89 out of 90.
THANK YOU!

mohammed735

Thanks ADAM , this lesson is very useful . i need watch this lesson again and again because of failed a quiz.:(

Dashaa

wow! thats good. it’s so beautiful & very useful

awaismughal

It’s learning platform for every student.

awaismughal

It was a great lesson.

awaismughal

Really interesting

Sunnie321

Thanks, Adam.
Could you make a video about plural verbs?
Especially those uncountable nouns can add ‘s’ behind.
E.g. shortage and shortages or wind and winds
What is the difference? In what situation should I use ‘shortages’ and ‘winds’?
It’s so confusing.
Hope you can help. Thanks.

Sophie

I’ll get on it Sophie :)

Adam

Sorry.
Type it wrong.
It should be uncountable nouns not plural verbs.

Sophie

GREAT!
INTERESTING!

sarahjamali

I gues.I have the worst grade from all who finished the quiz.i got just 33 points.But the lesson was very interesting,i should watch it once again.

Denysof

the second try was successful.100.I hope that’s because i catched everything)))

Denysof

thank you for this estimated lecture

haider j touma

Thank you!!

lucasmello

Thanks, Adam.

rungruny

“Live as if you were to die tomorrow, learn as if you were to live forever”.

Mahatma Gandhi’s quotation.

Regino

Life goes on…

rungruny

Hi again Adam! How one must correctly to ask about birthday? It would be great if you also wrote 10 questions(something about dates or something else)that I could use in everyday life. Thank you very much.

KATRIN777

Hi Katrin,

I think ‘when’ pretty much covers anything:

When is your birthday?
When were you born?

If you want more vague questions, you can ask what’s your sign? (zodiac sign)

Is this what you had in mind?

Adam

Thank you very much Adam for the answer.

KATRIN777

thank you Adam I really liked your lesson
I think it is very useful.

meir

thank you,as much as I have understood,we need to read many novel in order to use true for prefıxes.it is difficult but necessary,

yurrec ader

I like it!

Ayman Musa

Thanks everybody :)

Adam

i’m from Indonesia.
could you teach us the difference between “will” and “Going to” thank you

0101hades

Hi 0101Hades,

I’ll try to make a video, but for now:

will–when the future action is decided at the time of speaking.

going to– when the action was decided before and plans have been made.

Does this help a little?

Adam

wonderful explanation :)

Kardodona

it does really help me by your wonderful lesson, thanks adam…

henglay

thanks adam i got 78%

musabali

thank you Adam you’re my favorite teacher can you give us some advice to organize using of all the video lessen and help us to find a better way to learn English language because i want to be an automotive Thacher in a other country and before that i need to be perfect in English language i wish you could help me by some advice tanks again Adam .

delkhoshi

Hi Delkhoshi,

I would begin by building a vocab base (especially focused on your area of expertise), then start with basic grammar, like parts of speech, clauses, verb tenses, and articles. Then get into the detailed areas that are giving you trouble.

Hope this helps a little.

Adam

lessons are great! make me understand english better!

Jayanta

hello adama thank you very much for your great work to help people learn english i want ask your permession to use your videos in my youtube channel is it possible .?

fouadsaida

Adama? :D

(yes, I know you mean Adam, and no, sorry, you can’t use Adam’s videos. You can share them using Youtube’s social features, but you can’t copy them for your channel.)

engVid Moderator

thank you Adam. i got six true replies. very good

mehdinour

Thank you for your services to help us that we owe more to you

Adel Hussein obad shurif

Thank’s Adam , interesting lesson. Perefct explanation, I’ve got 100%

Halim1967

adam, well some of those lesson you have taught are quite easy but still all in all i find hard to understand…no offensive maybe i should feel the root first before i use any prefixes, am i right?

Blackrald

Hi Blackraid,

Of course. If you don’t know the word, the prefixes won’t help much. The lesson was more about knowing the differences between the prefixes and how to apply them to the roots. :)

Adam

adam, well some of those lesson in prefixes you have taught are quite easy but still all in all i find hard to understand…no offense maybe i should feel the root first before i use any prefixes, am i right?

Blackrald

Adam, thanks a lot. 8 of 9.

killsy

thank you Adam 8 of 9. I want to learn an irrelavent thing please do a lesson for it

What are the differences among include consist of involve compose of contain

slave of Allah

I’ll get on it :)

Adam

9 replies out of 9! But it’s very challenging topic. I just feel like that but can’t explain to the students because I’m not a Native speaker. So, thanks a lot, I’m really grateful, it helps. Could you hold a lesson about identifying and non-identifying relative clauses. I know the rule(where to put commas), but sometimes in practice it doesn’t help because the challenge is to feel which information is essential and which is additional. I mean the handbook says: “Look, here is the bike that my father made with his own hands.”(could we use “which” instead?) – We don’t use commas. “I quite enjoyed the tea and the cakes,which Alice made for us.” Was I right to explain that in the first sentence we don’t use commas as we can spot this bike repared by dad’s hands from a variety of others,so it is identifying information? I’m still hesitating…

Elena Demina

teacher I would like to help, I can understand the English however I can not speak or form sentences, you can give me some tips I am very interested in learning more. Sorry i had to use google translator

Matheus Vieira

thankyou teacher for lesson

sougar3000

Hello, Adam! I wanted to say that your lessons are really clear and useful. Could you please explain one thing I’ve noticed watching movies. People say “of note” as notable and “of interest” as interesting.Is there any difference and Is it the obsolete way of speaking,for Ive seen this only in historical movies so far. And can i use it in academical essay?

aidonna

Thank you Adam for this lesson! I strongly agree with you, because like another languages we have to “feel” which prefix would be more appropriate.

Wellington Porto Brito

Very, very interesting lesson. So useful

EUDIO

Thank you so much Adam for this very interesting lesson.I learnt many things .Best regards.

renardedudesert

Tks, Adam, the lesson was amazing

Ricky Fiebig

Tks, Adam, the lesson was amazing.

Looking for people for improve my english skills and make new friends too. my skype ricky.fiebig1

Ricky Fiebig

I love you, Adam! You’re perfect teacher! Please make a lesson about “there is/there are” please please please. Thank you for everything:)

Mariyam Ismailova

I got 9 out of 9. Thank you Adam, it was godd explanation.

AinurK

Thank you so much

Mamouni22

hey!! thank you mr for that lesson
by the way you talked about reading novels and books
can you suggest for me some titles of novels or a web site in which I can get interesting novels..?

marwa bna

waaaaaaaaaaaa…… another.. failed… I am really bad in English… help.. me please..
But thanks to you Adam. your lecture was really helpful.. i will keep watching on your videos so i could learn more..

abraham richard

Adam … loving your every lesson and the way you teach.. Txs lots…

sonia45

Hey Adam .. I am a student and I’m trying to improve my english because I’m going to specialize in it. And you’re lessons are very helpful so thank you!

Amira Kh

hi everyone i am new here im looking for someone who can speak with me in english THANKS

othy19990

What level is your English? Begin, imme or advance?

Sucitta

good day, Adam, n thanks for being such a good teacher:)

Yermira Makhatova

useful,thanks.

Lu00

Thank you very much for the video! Very helpful.

jannyr

Hi Adam
I have a request, please, can you do a video about suffixes?
Specifically: -acious, -cous, and -al.

jannyr

Great lesson… Congratulations Adam… you are a good teacher.

Marcos Guilherme

thanks adam I really like your teaching !

eytakk91

7 on 9
Feeling so so. :-]

srijan

Hi Adam? I have a question. How to prepare on the Michigan Test English Proficiency Exam? Could you give me some advice? I have taken this exam two times, but I failed. Do you have some free materials?

mungunsukhganbaatar

thanks adam

KH.Hamza

thank you sir

abubakaramu

Teacher Adam I would like to thank you for your good explanation about English Prefix lesson.I am not yet grasp perfectly.Even though I will study hard untill I understand.so long.

Enkutatash

I got 8 out of 9 :)
Thank you Adam

Salma Gharbi

Thanks, Adam! You explain everything very well! 10/10.

Romanova Vera

Thank Adam.. good lesson

AlfredoR

Perfect teacher! Perfect lesson! Thanks a lot!!

debora.torelli

Thanks Adam! I learned a lot. I have one question :) What dictionary should i use?

syd17

Thank you Adam.

marah.ay

It was difficult to understand perfectly but a good lesson!
Thank you :)

Bbok

what can I say &!!! it is perfect thank you!!!!!

AlinaCA

You are an excellent teacher. Thank you very much!

Brecarlo

6 out 9 not bad for me. hehehehe. thank you adam.

andrewgalaban

Incredible Lesson!So userful! Thanks a lot Mr.Adam!

julia spinchevska

I loved this lesson, I never ever thought this way about prefix…thanks Adam…

Claudio3

Really,You are fantastic.I never had an idea about differences between don’t like and dislike.They were synonyms to me. Thanks a lot.

mohamed owais

I only got 5… but anyway i will study more about this lesson… thanks adam…

Ryan18

Hi for all engvid team, this was hepfull lesson for me. I have no more comment, just to thank you specialy (Mr. Adam)

Happy new year.

manuelwilliam

8 correct out of 9.
Very useful grammar lesson.
Thanks Adam.

ANTON A

Thanks Adam, I got 10/10 :D

Tammyjang1

If we should use im- instead of in- When the root word begins with M. Than why we say IMperfect NOT INperfect. There’s a little misunderstood.

ed02

Adam , would you please explain to me about adjective phrase?

katelewis01

Thanks Adam for this lesson!
It was a little difficult because was something new for me, and I have got 6 correct of 9. I’ll watch this video again.
Have a nice Sunday!

Jacy

pleas could u explain all cunjunctions please
co-ordinatings
subordinatings
corrlatives
please with all its divisions

abaass

Great grammar lesson.

Leandro Cleber

Hi There! It’s my first leaving of comment.
This subject is a little bit difficult for me.
I’m gonna have a hard journey of learning.
Tks.

Fatima Angelo

This subject was amazing, to improve my english I need more of this.
Thanks for the lesson Adam, you are
an magneficient teacher.

Tahir@10

Thanks Adam. Very useful lesson. You give us really important information.

TimurMakhmutov

Very difficult lesson. Only 5 correct(

Onegin Evgeniy

I got 9 out of 9, not to brag :)) Thanks Adam, very helpful lesson

vymai

Thanks Adam

Your explication are verry clear simple to understand

Sylbeau

Thanks Adam
But how i will know when there are using ? because there are lots of different words ,and many prefixes , i must save a words which come with prefixes ?

nevin tamimi

Hello Adam :-(

I was so bad by the lesson. I am German and want to learn English but this ,I really could not learn right.’cause I noticed there are som rules about un ,in and dis -what you didn’t mention .What I have to do now ? I just learnt the words you told about dislake but in the other example in Quzz I didn’t know anymore.Thanks.Lubi

Lubi

thanks, I think you reason we need to read more is the best way to learm,thanks a lot.

Fabio Rivas

hey Adam! how about suffixes?

djomark

Tkanks Adam. Great tips

Kenyaponciano

7/9. I have to study! hahaha

GabrielleTavares123

I am really enjoy ur idom… I like nd want forwarderd to next one

Sulaiman khan 123

I got 6 out of 9 but It’s really help me to improve my English vocabulary.
thank’s Sir.

vidz

Your suggestions have always been reasonable. thank you Adam.

h.noorie

I need to study more about this. I’ll study more it. Thanks!!

Vvanessa45

9 out 9. Thank you for the interesting lesson being uncovered. I need to inflame my attempts to enhance my English language skills. Your lessons are helpful to give it a push. Good luck

kuba aka

I can’t understand this lesson. I took 44 in quiz. What can I do Adam?

elvinncinar05

Thank you, Adam!
The most interesting lesson for me,7 from 9
Thank you!

travelmama

Thk. I undertand the class .. thk you.
It was a great boudt for me….

carlosfpusb

9 out of 9, olé!

ramoncarrasco

well, i have to improved my memmory but i think that i am so good for be my second day learning with you. the english lenguage is not my natural lenguage although of i was learn by other means, i musth say that i understand everything you saying in yours videos. congratulation for you page and i apologize for my grammar, that is why i need you to advaince. thank you!

lie diaz

good lesson thanks Adam

Alex-1956

Adam and what about disbalanced or we can use onli disbalance?

evil toad

I retained what you taught in our lesson. 100% yay!

Tamaraplus3

Difficult but basicly I understand, thank you!

Roberto

Adam is a great teacher. I can remember and understand the leson easily. Thanks so much.

Sucitta

I’m very disappointed,I have scored 5 out of 9, I think I cannot success with prefixes
I hate Grammar
:(

muhammedortashi

Adam is one of the best teacher here. His clear enunciation enabels me to switch off subtitles and enchance personal listening level.Wow! 9 of 9. Thank you, Adam

Lioness

Thanks Adam …✌?
Hope the nexte vedio you will make it about ..”how to make verbs nouns and adjectives ”..oh ..please don’t tell me it’s depends on fellings ..haha hope there is a rule for that ..thanks?

Mikassa

I´m so glad for discovered this portal in the internet. Thank´s Adam and guys of EngVid.

Raul S Pinheiro

Spite of I got a good grade in the quiz, I feel that I have practice more and read as Adam is suggesting.

Thanks a lot dude for the lesson, it is quite interesting.

Luis.Hinojos

Thanks!!

marionalella

Awesone!

gpm777

Sux
Opposite actually!

EndmostOcean43YT

This is great
Thx Adam
I need help with prefixes and suffixes

EndmostOcean43YT

9/9 thanks Adam haha

joaopedroaouad

9 out of 9.
tnx Adam

ho3n

i’ve got 9 out of 9 thamk you Adam

Ismail

A million thanks for your wonderful lesson sir!It’s so useful,more informative,and very clear.I like the way you teach.I love your lesson as always.This is sort of complicated lesson.

Prasunan

Hi Adam, this was a very good lesson, thanks :) I totally agree that you must feel which is correct, and I’m happy to say that I use them almost always correctly :)

Emily

6/9! Terrible! Adam’s lesson is more hard than Emma’s. I only can understand 60%.

Jerry Gu

More than wonderful as always.. Very well explained. thanks

Hyoussef9000

Thanks Adam .Its an intersting lesson as usual but I think there is a little prefix you don’t mension which is ; ” de ” …for ex;forst ..deforst , code ..decoder.
Thank you again for your consciousness help.