I'd be birling you'd be birling he'd be birling we'd be birling you'd be birling they'd be birling
Perfect
I would've birled you would've birled he would've birled we would've birled you would've birled they would've birled
V-ing perfect
I would've been birling you would've been birling he would've been birling we would've been birling you would've been birling they would've been birling
Negation
Simple form
I wouldn't birl you wouldn't birl he wouldn't birl we wouldn't birl you wouldn't birl they wouldn't birl
V-ing form
I wouldn't be birling you wouldn't be birling he wouldn't be birling we wouldn't be birling you wouldn't be birling they wouldn't be birling
Perfect
I wouldn't have birled you wouldn't have birled he wouldn't have birled we wouldn't have birled you wouldn't have birled they wouldn't have birled
V-ing perfect
I wouldn't have been birling you wouldn't have been birling he wouldn't have been birling we wouldn't have been birling you wouldn't have been birling they wouldn't have been birling
Interrogative form
Simple form
would I birl? would you birl? would he birl? would we birl? would you birl? would they birl?
V-ing form
would I be birling? would you be birling? would he be birling? would we be birling? would you be birling? would they be birling?
Perfect
would I have birled? would you have birled? would he 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 he have been birling? would we have been birling? would you have been birling? would they have been birling?
Interro-negative form
Simple form
wouldn't I birl? wouldn't you birl? wouldn't he birl? wouldn't we birl? wouldn't you birl? wouldn't they birl?
V-ing form
wouldn't I be birling? wouldn't you be birling? wouldn't he be birling? wouldn't we be birling? wouldn't you be birling? wouldn't they be birling?
Perfect
wouldn't I have birled? wouldn't you have birled? wouldn't he have birled? wouldn't we have birled? wouldn't you have birled? wouldn't they have birled?
V-ing perfect
wouldn't I have been birling? wouldn't you have been birling? wouldn't he have been birling? wouldn't we have been birling? wouldn't you have been birling? wouldn't they have been birling?