Could Have Should Have Would Have

I __________________(buy) bread but I didn't know we needed it. (past possibility)

We _________________________(invite) so many people to our party! I'm worried that we won't have enough room for everyone. (past negative advice / regret)

I ___________________________(start) saving money years ago! (past advice / regret)

We____________________(join) you at the restaurant, but we couldn't get a babysitter. (past willingness)

The weather (be) ______________________________any worse! (past impossibility)

I ________________________ (buy) a house a few years ago - they've all increased in value. (past advice)

They________________________________ (win) the football match, but John hurt his ankle. (past possibility)

Amanda___________________________________ (finish) the work, but she felt ill and had to go home. (past willingness)

We ________________________________________(finish) the game, even if we'd wanted to. It was raining very hard and we had to stop. (past negative possibility)

I ___________________________________(eat) so much chocolate! I feel sick! (past negative advice / regret)