I can't have it left at home.
INCORRECT. I can't have left it at home.
It could have fallen out of your bag.
CORRECT.
I must have leaved a window open.
INCORRECT. I must have left a window open.
Tom can't have take it.
INCORRECT. Tom can't have taken it.
The battery must've run out.
CORRECT.
Something must to have made that noise.
INCORRECT. Something must have made that noise.
It must have be a burglar.
INCORRECT. It must have been a burglar.
He might have missed the bus.
CORRECT.
