It's very simple to learn! The slide includes most of the conjunction: how to use it, when to use it, and common mistake. It's also include exersice, too.

1. Conjunctions

2. AND
• Join two words or clauses when they
are equal and their meaning go well
together.
• E.g. Every evening mom walks.
• Every evening Dad jogs.
• Every evening mom walks and Dad
jogs.

3. BUT
• Join two clauses when their meaning
contrast with each other.
• E.g. My brother enjoys playing hockey.
• I dislike games.
• My brother enjoys playing hockey but I
dislike games.

4. OR
Join clauses to show that only one of the
choices will take place.
• You must do some
exercise.
• You will grow fat.
• You must do some
exercise or you will
grow fat.
• We can go to the zoo.
• We can visit the
museum.
• We can go to the zoo
or we can visit the
museum.

5. 3 or more than 3 clauses case
• When we use and/or to join three or
more clauses, we use comma & and/or.
• E.g. I’ll sing. You will dance.
• She will play piano. He will jokes.
• I’ll sing, you will dance, she will play
piano and he will jokes.

6. because & because of
to answer the question ‘why?’
• because +subordinate
clause
• to give the reason for
what is state in the
main clause.
• Why did she cry?
• She cried because (it
was painful).
• because of + noun =
adverbial phrase
• Why did she cry?
• She cried because of
the pain.
• The nouns can have an
article or possessive
pronoun before it.
noun

7. because & so (can’t use together)
We use’ because’ to give
the reason for
something
• I was late because I
missed the bus.
• She didn’t go out
because she was
busy.
We use ‘so’ to describe
the result of an action or
situation
• I missed the bus, so I
was late.
• She was busy, so she
didn’t go out.

8. Common mistakes
• Everyone likes her because of she is
friendly.
• I am sweating because of hot.
• He rested it’s because he had a
headache.
• Because Anna had a headache, so she
went straight to bed.
• She’s angry, so he lied to her.

9. Although (can’t use it with but)
• We use although to
link sentences that
are about different
or opposite ideas.
• At the beginning
• Although she wasn’t
invited, she came to
the party.
• E.g. Although I
tried, I couldn’t do
the exercise.
• In the middle
• She came to the
party although she
wasn’t invited.

10. when & while
• when + the thing
happening 1st =
subordinate clause
• The main clause
tells the thing
happening slightly
late.
• We use while to
connect two things
happening at the
same time.
• We often use the
same tense for the
main clause and the
subordinate clause
beginning with while.
• to connect two things

11. when
• The lion roared when it saw the hunters).
(slightly late) (happening 1st )
main
clause
subordinate
clause

12. while
• Len was swimming while Andy was fishing.
• Len swam while Andy fished.
• Swimming and fishing were happening at
the same time.
past continuous tense
simple past tense

13. Exercise
Time

14. Study the following sentences and underline the
word or words which are unnecessary.
• 1. Although she was tired but she went to
work.
• 2. Because I liked him, so I tried to help him.
• 3. I have got a friend who he works in a pub.
• 4. The guy that she married him is an old
friend of mine.
• 5. Though he is fat still he runs fast.

15. • 6. As he is fat, so he runs slowly.
• 7. If he works hard, then he will win.
• 8. As I fired at the tiger at that time he
shook my hands.
• 9. Because he is clever, therefore he
gets good marks.
• 10. Until you do not try, you must be
punished.

16. Correct the following sentences.
• 1. She was upset, because didn’t know
what to do.
• 2. As you know, that I work hard.
• 3. Unless you do not try, you will not win.
• 4. No sooner I had spoken, than he left.
• 5. Neither he comes nor he writes.
• 6. Not only he will go, but also he will
remain there.