Inversions
He wouldn't allow it on any occasion.
On no occasion, would he allow it.
He could have taken the car.
He could have taken the car, couldn't he?
We hardly ever see new people here.
Hardly ever do we see new people here.
She looks very happy.
She looks very happy, doesn't she?
I wouldn't bother him on any occasion
On no occasion would I bother him
Only after prices get lower will people buy it.
She should have told him sooner.
She should have told him sooner, shouldn't she?
He shouldn't approve it on any condition.
On no condition should he approve it.
It tastes like old coffee.
It tastes like old coffee, doesn't it.
I will not give up on my goal on any occasion
On no occasion will I give up on my goal.
They had never been happy before
Never before had they been so happy.
We shouldn't have gone so early, should we?
He will not accept it under any circumstances.
Under no circumstances will he accept it.
It doesn't look like it's going to rain.
It doesn't look like it's going to rain, does it?
We didn't see each other since graduation
Not since graduation did we see each other.
I had never been to such an important meeting before
Never before had I been to such an important meeting.
They might have taken the bus.
They might have taken the bus, mightn't they (might they not)?
He will only pass by working really hard
Only by working really hard will he pass.
It looks like they are having another baby.
It looks like they are having another baby, doesn't it?
I had never cared for her so much before.
Never before had I cared for her.
We haven't seen each other since the last convention
Not since the last convention have we seen each other.
They may have gone home early.
They may have gone home early, may they not?
We'll only buy our car by spending less money.
Only by spending less money will we buy our car.
They look like they could be twins.
They look like they could be twins, don't they?
I didn't go back to New York again since I left.
Not since I left New York did I go back there again.