She was dizzy. ( Advice in the past, create)
She should have seen a doctor; She should have called a doctor, etc.
Where is he? I wonder...
I wonder where he is.
How long has he been studying English? I'd like to know...
I'd like to know how long he has been studying English.
They'd never studied Geometry before, ___________? (Complete with a tag question)
They'd never studied Geometry before, HAD THEY?
I wish I had been able to make new friends.
a) I didn't make friends.
b) I made friends.
a) I didn't make friends
When you can't make head or tail of a project, it means you can't:
a) Start it.
b) Understand it.
b) Understand it.
If we hadn't waited for him, we wouldn't have been late. Were we late?
Yes, we were.
She aced the test. (LOGICAL CONCLUSION BASED ON THE PAST)
She must have studied hard/ a lot.
