They ________ end up having to sell the house.
They could end up having to sell the house.
I can't tonight but I_______come next time.
I can't tonight but I will certainly come next time.
I'm not sure that they'll say yes. They ______ (NOT) say yes.
They might/ may not say yes.
I_______ go to the party, but I'm not sure yet.
I might go to the party, but I'm not sure yet.
Paula ________ (not go certainly) to London next week, she is very sick.
Paula certainly won't go to London next week, she is very sick.
He _____ well choose not to sign the documents.
He may well/could well choose not to sign the documents.