couldn't've

compound contraction of "could not have"
She couldn't've done it, she's way too stupid for a plan that complex! Also see wouldn't've and shouldn't've.
by Sunob August 29, 2007
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wouldn't've

A compound contraction for "would not have". Also see couldn't've and shouldn't've.
I was going to explain the whole thing to him, but he wouldn't've understood.
by Sunob August 29, 2007
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shouldn't've

Compound contraction of "should not have". Also see wouldn't've and couldn't've.
You shouldn't've said that, now Grandma's really mad!
by Sunob August 29, 2007
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