Tips to complete the exercise:
1) for past willingness use WOULD
2) for past regret / advice use SHOULD
3) for past possibility use COULD
You may use contractions if you like

1 Could have s h o u l d h a v e w o u l d h a v e e x e r c i s e 1 © 2015 www.perfect - english - grammar.com. May be freely copied for personal or classroom use. C ould Have Should Have Would H ave Exercise 1 1. I ________ ___________________________ (buy) bread but I didn’t know we needed it. (past possibility) 2. We ________ ___________________________ (invite) so many people

Could have should have would have exercise 1

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