Don't make me do this!

don’t niggle

Don’t lose heart!

I don't think so.

Don’t you know it?

Don’t darken my door again

I don't like it when you snore.

Don’t let the chance slip!

I don't believe in ghosts.

Don’t let it be an obstacle [to doing something]

Don’t cross your bridges until you come to them

I don’t know what to do

Don’t stand on ceremony!

I don't want to wait that long.

I don’t know B from a bull’s foot.

Don’t get discouraged

I don't feel well.

We don’t want the audience to listen to tedious product presentations at the next sales event

Don’t be afraid of him, his bark is worse than his bite

Don’t panic!

I don't know the person in the picture.

I don’t understand the question

Don’t ever let him into a secret, because he always spills the beans

I don’t see your point

I don’t know anything about it