Didn't

I didn't know where it came from.

I didn't like it.

If you didn't know me that way then you simply didn't know me.

I didn't want this to happen.

You're lucky because he didn't bite you.

You didn't tell him anything?

It caught me off guard; I didn't know what to do.

I didn't mean to give you that impression.

I didn't know he drank so much.

Didn't you write a letter to him?