If she (come), I (be) surprised.
If she comes, I'll be surprised.
(0) My flatmate (clean) really well if he (clean) the house.
My flatmate cleans really well if he cleans the house.
I usually (go) to work by bike if the weather (be) nice.
I go to work by bike if the weather is nice.
We (be) late if we (not/hurry).
We'll be late if we don't hurry.
