Time
While I waited I read the newspaper.
[two actions at the same time]
As I was driving, I saw an accident.
[as is used to describe the background]
As soon as/when I get home I’ll finish my homework.
As soon as/when/once you’ve finished you can go
home.
[!!! Never use will after as soon as, when, or once]
[as soon as means ‘inmediately’ when, once is
less specific]
Condition
You may stay as long as/provided that you don’t
mind sleeping on the sofa.
In case of fire dial 091.
You can’t get in the party unless you have a ticket.
I wouldn’t marry him, even if she was the only man
in the world.
Condition
Words with –ever:
Whenever you come, I’ll be at home.
I’ll be with you whatever you decide.
Whoever wins the election, nothing will change.
Contrast
Although/even though he had a bad leg, he still
won the game.
I passed the exam, even though/although I hadn’t
studied.
We went to the concert, despite/in spite of the
rain
We went to the concert in spite of the fact that it
was raining heavily.
Contrast
We didn’t like the hotel. However, he had a good
time.
The north of Italy is very expensive whereas the
south is very cheap.
Reason, purpose, result
As/since I was very tired, I went home.
I went home because I was very tired.
I bought this good book so that I can learn faster.
I’ve lost my passport, so I won’t be able to leave the
country.
We’ve been working a lot and therefore we deserve
some rest.