du das nicht getan hast

that you didn't do it

→ du
phrase Rare #47,574
that you didn't do it A subordinate-clause phrase with verb-second-person singular in the perfect tense. The verb goes at the end because the phrase is introduced by a subordinating conjunction such as „dass“ or „warum“; „das“ can mean “that” or “it” depending on context.
GE: Ich weiß, dass du das nicht getan hast.
EN: I know that you didn't do it.

Sag Tom, warum du das nicht getan hast!

Tell Tom why you didn't do that!

Ich bin froh, daß du das nicht getan hast.

I'm glad you didn't do that.

Du wirst froh sein, daß du das nicht getan hast.

You’ll be glad you didn’t do that.