When I was a child, I should have __________.
When I was a child, I should have __________.
How _____ I _____ _____ so stupid?
How could I have been so stupid?
When I was at university, I shouldn't have __________.
When I was at university, I shouldn't have __________.
She _____ _____ _____ yes, but she wasn't ready to get married.
She could have said yes, but she wasn't ready to get married.
She _____ _____ called first.
She could/should have called first.
I really _____ _____ _____ so much.
I really shouldn't have eaten so much.