Present and Past Conditionals

We use type 2
(If+simple past, sub+would+v...)
to describe....

• Unreal conditions; hypothetical or imaginary
• Real conditions; possible to happen in the future

We use type 1 
(If+simple present, sub+will+v...)
to describe....

• Unreal conditions; hypothetical or imaginary
• Real conditions; possible to happen in the future

If I knew his number, 

• I would phoned him.
• I will phone him.
• I would phone him.
• I phone him.

...................... ............................ . But I want to go to the party.

• If I didn't want to go to the party, I won't.
• If I didn't wanted to go to the party, I wouldn't.
• If I wanted to go to the party, I wouldn't.
• If I didn't want to go to the party, I wouldn't.

Choose the best conditional to describe this situation:
We don't see you very often because you live so far away.

• If you didn't live so far away, we'd see you more often.
• If you live so far away, we will see you more often.
• If you don't live so far away, we'll see you more often.
• If you didn't have a car, you'd buy a horse.

Choose the best conditional to describe this situation:
It's a nice book but it's too expensive, so I'm not going to buy it.

• If it is cheap, I will buy it.
• If it were cheaper, I would buy it.
• If it is expensive, I will buy it.
• If it were a pen, I wouldn't buy it.

Choose the best conditional to describe this situation:
We don't go out very often - we can't afford it.

• We would go out more often if we could afford it.
• We will go out more often if we can afford it.
• We go out more often if we afford it.
• We wouldn't go out if we could afford it

You often see Sarah. A friend of yours wants to contact her. Which do you say?

• If I see Sarah, I'll tell her to call you.
• If I saw Sarah, I'd tell her to call you.
• If I saw Sarah, I will tell her to call you.
• If I see Sarah, I would tell her to call you.

Somebody stops you and asks the way to a bank. Which do you say?

• If you go right at the end of this street, you'll see a bank on your left.
• If you went right at the end of this street, you'd see a bank on your left.
• If you go right at the end of this street, you'd see a bank on your left.
• If you went right at the end of this street, you'll see a bank on your left.

You've never lost your passport. You can only imagine it

• I don't know what I'll do if I lose my passport.
• I don't know what I'd do if I lost my passport.
• I don't know what I'd do if I lose my passport.
• I don't know what I'll do if I lost my passport.