English verb conjugation
MAY BIRL

Regular verb: birl - birled - birled

Affirmation

Simple form	V-ing form
I may birl you may birl he may birl we may birl you may birl they may birl	I may be birling you may be birling he may be birling we may be birling you may be birling they may be birling
Perfect	V-ing perfect
I may have birled you may have birled he may have birled we may have birled you may have birled they may have birled	I may have been birling you may have been birling he may have been birling we may have been birling you may have been birling they may have been birling

Negation

Simple form	V-ing form
I mayn't birl you mayn't birl he mayn't birl we mayn't birl you mayn't birl they mayn't birl	I mayn't be birling you mayn't be birling he mayn't be birling we mayn't be birling you mayn't be birling they mayn't be birling
Perfect	V-ing perfect
I mayn't have birled you mayn't have birled he mayn't have birled we mayn't have birled you mayn't have birled they mayn't have birled	I mayn't have been birling you mayn't have been birling he mayn't have been birling we mayn't have been birling you mayn't have been birling they mayn't have been birling

Interrogative form

Simple form	V-ing form
may I birl? may you birl? may he birl? may we birl? may you birl? may they birl?	may I be birling? may you be birling? may he be birling? may we be birling? may you be birling? may they be birling?
Perfect	V-ing perfect
may I have birled? may you have birled? may he have birled? may we have birled? may you have birled? may they have birled?	may I have been birling? may you have been birling? may he have been birling? may we have been birling? may you have been birling? may they have been birling?

Interro-negative form

Simple form	V-ing form
mayn't I birl? mayn't you birl? mayn't he birl? mayn't we birl? mayn't you birl? mayn't they birl?	mayn't I be birling? mayn't you be birling? mayn't he be birling? mayn't we be birling? mayn't you be birling? mayn't they be birling?
Perfect	V-ing perfect
mayn't I have birled? mayn't you have birled? mayn't he have birled? mayn't we have birled? mayn't you have birled? mayn't they have birled?	mayn't I have been birling? mayn't you have been birling? mayn't he have been birling? mayn't we have been birling? mayn't you have been birling? mayn't they have been birling?