I may placard you may placard he may placard we may placard you may placard they may placard
Forme en V-ing
I may be placarding you may be placarding he may be placarding we may be placarding you may be placarding they may be placarding
Perfect
I may have placarded you may have placarded he may have placarded we may have placarded you may have placarded they may have placarded
Perfect en V-ing
I may have been placarding you may have been placarding he may have been placarding we may have been placarding you may have been placarding they may have been placarding
Négation
Forme simple
I mayn't placard you mayn't placard he mayn't placard we mayn't placard you mayn't placard they mayn't placard
Forme en V-ing
I mayn't be placarding you mayn't be placarding he mayn't be placarding we mayn't be placarding you mayn't be placarding they mayn't be placarding
Perfect
I mayn't have placarded you mayn't have placarded he mayn't have placarded we mayn't have placarded you mayn't have placarded they mayn't have placarded
Perfect en V-ing
I mayn't have been placarding you mayn't have been placarding he mayn't have been placarding we mayn't have been placarding you mayn't have been placarding they mayn't have been placarding
Forme interrogative
Forme simple
may I placard? may you placard? may he placard? may we placard? may you placard? may they placard?
Forme en V-ing
may I be placarding? may you be placarding? may he be placarding? may we be placarding? may you be placarding? may they be placarding?
Perfect
may I have placarded? may you have placarded? may he have placarded? may we have placarded? may you have placarded? may they have placarded?
Perfect en V-ing
may I have been placarding? may you have been placarding? may he have been placarding? may we have been placarding? may you have been placarding? may they have been placarding?
Forme interro-négative
Forme simple
mayn't I placard? mayn't you placard? mayn't he placard? mayn't we placard? mayn't you placard? mayn't they placard?
Forme en V-ing
mayn't I be placarding? mayn't you be placarding? mayn't he be placarding? mayn't we be placarding? mayn't you be placarding? mayn't they be placarding?
Perfect
mayn't I have placarded? mayn't you have placarded? mayn't he have placarded? mayn't we have placarded? mayn't you have placarded? mayn't they have placarded?
Perfect en V-ing
mayn't I have been placarding? mayn't you have been placarding? mayn't he have been placarding? mayn't we have been placarding? mayn't you have been placarding? mayn't they have been placarding?