Conditionals review

Second: unlikely or imaginary present/future (past simple | would + inf)

she would call me.

If she loved me,

If I could afford it ,

I would buy a new flat.

Third: didn't happen- regret or criticising: past perfect + would + have + past participle

I would have got you a present.

If I'd known about your birthday

Zero: general truths (present | present)

you use more petrol

If/when you drive fast,

First: a real possibility in the future (present | future)

If you take up programming,

you'll work for Google

offers, promises and threats: imperative + and/or + future

and I'll be sick!

Drive too fast

If

if or when?

my sister leaves, I'll be lonely

When