You couldn't!

You couldn't (do that)!

and You wouldn't (do that)!

an indication of disbelief that someone might do something. Bill: I'm going to run away from home! Jane: You couldn't! Bill: I get so mad at my brother, I could just strangle him. Tom: You couldn't do that!

Common Names:

Name	Pronounced	Usage
Kleopatra	-	Ancient Greek
Ffion	FEE-awn, FI-awn	Welsh
MaËLle	-	French, Breton
Constanze	-	German
Callista	kə-LIS-tə	English (Rare)
Antonio	ahn-TO-nyo (Spanish, Italian)	Spanish, Italian, Croatian