Third conditional
could / couldn't
What would you say?
(regret)
What would you say ?(Advice or suggestion)
100

If you ____ (call) me, I _____ (help) you.

If you had called me, I would have helped you.

100

Why didn't you wear a helmet when you went skiing?
You ____ (hurt) yourself.

You could have hurt yourself.

100

You didn't eat breakfast.

I should have eaten breakfast.

100

Your friend got a bad score on her/his test.

You should've studied.

200

I _____ (go) to Scotland if you ____ (recommend) it. 

I wouldn't have gone to Scotland if you hadn't recommended it. 

200

I think he _____ (win) the race, but he hadn't trained enough. 

I think he could have won the race, but he hadn't trained enough.

200

You didn't quit smoking last year.

I should have quit smoking last year.

200

Your friend is cold because he/she didn't wear a jacket.

You should have worn a jacket.

300

We _____ (miss) our flight if we ____ (leave) when you wanted to. 

We would have missed our flight if we had left when you wanted to. 

300

Thanks for all your help organizing the trip. I ____ (do) it without you.

Thanks for all your help organizing the trip. I couldn't have done it without you.

300

You were impatient.

I should have been patient.

300

Your partner stayed up late and is too tired today.

You shouldn't have stayed up late.

400

You ______ (be) so cold if you ______ (bring) a warm coat.

You wouldn't have been so cold if you had brought a warm coat.

400

I've been waiting for an hour for you! You _____ (call) to say you'd be late!

I've been waiting for an hour for you! You could have called to say you'd be late!

400

You parked illegally and got a ticket.

I shouldn't have parked illegally.

400

Your brother wasn't ready for his job interview.

You should have been ready.

500

If I ____ (be) so rude, we _____ (have) an argument. 

If I hadn't been so rude, we wouldn't have had an argument. 

500

I did my best, but I didn't pass the exam. I _____ (try) any harder.

I did my best, but I didn't pass the exam. I couldn't have tried any harder.

500

You were upset for no reason.

I shouldn't have been upset.

500

Your father was angry at you for no good reason.

You shouldn't have been angry.

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