English verb conjugation
MAY CONCERT

Regular verb: concert - concerted - concerted

Affirmation

Simple form	V-ing form
I may concert you may concert he may concert we may concert you may concert they may concert	I may be concerting you may be concerting he may be concerting we may be concerting you may be concerting they may be concerting
Perfect	V-ing perfect
I may have concerted you may have concerted he may have concerted we may have concerted you may have concerted they may have concerted	I may have been concerting you may have been concerting he may have been concerting we may have been concerting you may have been concerting they may have been concerting

Negation

Simple form	V-ing form
I mayn't concert you mayn't concert he mayn't concert we mayn't concert you mayn't concert they mayn't concert	I mayn't be concerting you mayn't be concerting he mayn't be concerting we mayn't be concerting you mayn't be concerting they mayn't be concerting
Perfect	V-ing perfect
I mayn't have concerted you mayn't have concerted he mayn't have concerted we mayn't have concerted you mayn't have concerted they mayn't have concerted	I mayn't have been concerting you mayn't have been concerting he mayn't have been concerting we mayn't have been concerting you mayn't have been concerting they mayn't have been concerting

Interrogative form

Simple form	V-ing form
may I concert? may you concert? may he concert? may we concert? may you concert? may they concert?	may I be concerting? may you be concerting? may he be concerting? may we be concerting? may you be concerting? may they be concerting?
Perfect	V-ing perfect
may I have concerted? may you have concerted? may he have concerted? may we have concerted? may you have concerted? may they have concerted?	may I have been concerting? may you have been concerting? may he have been concerting? may we have been concerting? may you have been concerting? may they have been concerting?

Interro-negative form

Simple form	V-ing form
mayn't I concert? mayn't you concert? mayn't he concert? mayn't we concert? mayn't you concert? mayn't they concert?	mayn't I be concerting? mayn't you be concerting? mayn't he be concerting? mayn't we be concerting? mayn't you be concerting? mayn't they be concerting?
Perfect	V-ing perfect
mayn't I have concerted? mayn't you have concerted? mayn't he have concerted? mayn't we have concerted? mayn't you have concerted? mayn't they have concerted?	mayn't I have been concerting? mayn't you have been concerting? mayn't he have been concerting? mayn't we have been concerting? mayn't you have been concerting? mayn't they have been concerting?