I would birl you would birl she would birl we would birl you would birl they would birl
V-ing form
I would be birling you would be birling she would be birling we would be birling you would be birling they would be birling
Perfect
I would have birled you would have birled she would have birled we would have birled you would have birled they would have birled
V-ing perfect
I would have been birling you would have been birling she would have been birling we would have been birling you would have been birling they would have been birling
Negation
Simple form
I would not birl you would not birl she would not birl we would not birl you would not birl they would not birl
V-ing form
I would not be birling you would not be birling she would not be birling we would not be birling you would not be birling they would not be birling
Perfect
I would not have birled you would not have birled she would not have birled we would not have birled you would not have birled they would not have birled
V-ing perfect
I would not have been birling you would not have been birling she would not have been birling we would not have been birling you would not have been birling they would not have been birling
Interrogative form
Simple form
would I birl? would you birl? would she birl? would we birl? would you birl? would they birl?
V-ing form
would I be birling? would you be birling? would she be birling? would we be birling? would you be birling? would they be birling?
Perfect
would I have birled? would you have birled? would she have birled? would we have birled? would you have birled? would they have birled?
V-ing perfect
would I have been birling? would you have been birling? would she have been birling? would we have been birling? would you have been birling? would they have been birling?
Interro-negative form
Simple form
would I not birl? would you not birl? would she not birl? would we not birl? would you not birl? would they not birl?
V-ing form
would I not be birling? would you not be birling? would she not be birling? would we not be birling? would you not be birling? would they not be birling?
Perfect
would I not have birled? would you not have birled? would she not have birled? would we not have birled? would you not have birled? would they not have birled?
V-ing perfect
would I not have been birling? would you not have been birling? would she not have been birling? would we not have been birling? would you not have been birling? would they not have been birling?