English verb conjugation
MAY DECIDE

Regular verb: decide - decided - decided

Affirmation

Simple form	V-ing form
I may decide you may decide she may decide we may decide you may decide they may decide	I may be deciding you may be deciding she may be deciding we may be deciding you may be deciding they may be deciding
Perfect	V-ing perfect
I may have decided you may have decided she may have decided we may have decided you may have decided they may have decided	I may have been deciding you may have been deciding she may have been deciding we may have been deciding you may have been deciding they may have been deciding

Negation

Simple form	V-ing form
I mayn't decide you mayn't decide she mayn't decide we mayn't decide you mayn't decide they mayn't decide	I mayn't be deciding you mayn't be deciding she mayn't be deciding we mayn't be deciding you mayn't be deciding they mayn't be deciding
Perfect	V-ing perfect
I mayn't have decided you mayn't have decided she mayn't have decided we mayn't have decided you mayn't have decided they mayn't have decided	I mayn't have been deciding you mayn't have been deciding she mayn't have been deciding we mayn't have been deciding you mayn't have been deciding they mayn't have been deciding

Interrogative form

Simple form	V-ing form
may I decide? may you decide? may she decide? may we decide? may you decide? may they decide?	may I be deciding? may you be deciding? may she be deciding? may we be deciding? may you be deciding? may they be deciding?
Perfect	V-ing perfect
may I have decided? may you have decided? may she have decided? may we have decided? may you have decided? may they have decided?	may I have been deciding? may you have been deciding? may she have been deciding? may we have been deciding? may you have been deciding? may they have been deciding?

Interro-negative form

Simple form	V-ing form
mayn't I decide? mayn't you decide? mayn't she decide? mayn't we decide? mayn't you decide? mayn't they decide?	mayn't I be deciding? mayn't you be deciding? mayn't she be deciding? mayn't we be deciding? mayn't you be deciding? mayn't they be deciding?
Perfect	V-ing perfect
mayn't I have decided? mayn't you have decided? mayn't she have decided? mayn't we have decided? mayn't you have decided? mayn't they have decided?	mayn't I have been deciding? mayn't you have been deciding? mayn't she have been deciding? mayn't we have been deciding? mayn't you have been deciding? mayn't they have been deciding?