I may birl you may birl he may birl we may birl you may birl they may birl
Forme en V-ing
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
I may have birled you may have birled he may have birled we may have birled you may have birled they may have birled
Perfect en V-ing
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
Négation
Forme simple
I may not birl you may not birl he may not birl we may not birl you may not birl they may not birl
Forme en V-ing
I may not be birling you may not be birling he may not be birling we may not be birling you may not be birling they may not be birling
Perfect
I may not have birled you may not have birled he may not have birled we may not have birled you may not have birled they may not have birled
Perfect en V-ing
I may not have been birling you may not have been birling he may not have been birling we may not have been birling you may not have been birling they may not have been birling
Forme interrogative
Forme simple
may I birl? may you birl? may he birl? may we birl? may you birl? may they birl?
Forme en V-ing
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
may I have birled? may you have birled? may he have birled? may we have birled? may you have birled? may they have birled?
Perfect en V-ing
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?
Forme interro-négative
Forme simple
may I not birl? may you not birl? may he not birl? may we not birl? may you not birl? may they not birl?
Forme en V-ing
may I not be birling? may you not be birling? may he not be birling? may we not be birling? may you not be birling? may they not be birling?
Perfect
may I not have birled? may you not have birled? may he not have birled? may we not have birled? may you not have birled? may they not have birled?
Perfect en V-ing
may I not have been birling? may you not have been birling? may he not have been birling? may we not have been birling? may you not have been birling? may they not have been birling?