Question

If we (work) all night, we (finish) in time; but we have no intention of doing it.

Should you com late, they (not let) you in.

He might get rid of his cough if he (not smoke) so much.

He always says hello if he (see) you

I (warn) you if I had seen you last week

Shout if you (see) anything unsually

Answer 1

If we (work) all night, we (will finish) in time; but we have no intention of doing it.

Should you com late, they (will not let) you in.

He might get rid of his cough if he (did not smoke) so much.

He always says hello if he (sees) you

I (would have warned) you if I had seen you last week

Shout if you (see) anything unsually

Answer 2

had worked / would have finished

won't let

didn't smoke

sees

would have warned

see

Answer 3

If we (worked) all night, we (would finish) in time; but we have no intention of doing it.

Should you com late, they (will not let) you in.

He might get rid of his cough if he (did not smoke) so much.

He always says hello if he (sees) you

I (would have warned) you if I had seen you last week

Shout if you (see) anything unsually