English verb conjugation
MAY FIRM

Regular verb: firm - firmed - firmed

Affirmation

Simple form	V-ing form
I may firm you may firm she may firm we may firm you may firm they may firm	I may be firming you may be firming she may be firming we may be firming you may be firming they may be firming
Perfect	V-ing perfect
I may have firmed you may have firmed she may have firmed we may have firmed you may have firmed they may have firmed	I may have been firming you may have been firming she may have been firming we may have been firming you may have been firming they may have been firming

Negation

Simple form	V-ing form
I may not firm you may not firm she may not firm we may not firm you may not firm they may not firm	I may not be firming you may not be firming she may not be firming we may not be firming you may not be firming they may not be firming
Perfect	V-ing perfect
I may not have firmed you may not have firmed she may not have firmed we may not have firmed you may not have firmed they may not have firmed	I may not have been firming you may not have been firming she may not have been firming we may not have been firming you may not have been firming they may not have been firming

Interrogative form

Simple form	V-ing form
may I firm? may you firm? may she firm? may we firm? may you firm? may they firm?	may I be firming? may you be firming? may she be firming? may we be firming? may you be firming? may they be firming?
Perfect	V-ing perfect
may I have firmed? may you have firmed? may she have firmed? may we have firmed? may you have firmed? may they have firmed?	may I have been firming? may you have been firming? may she have been firming? may we have been firming? may you have been firming? may they have been firming?

Interro-negative form

Simple form	V-ing form
may I not firm? may you not firm? may she not firm? may we not firm? may you not firm? may they not firm?	may I not be firming? may you not be firming? may she not be firming? may we not be firming? may you not be firming? may they not be firming?
Perfect	V-ing perfect
may I not have firmed? may you not have firmed? may she not have firmed? may we not have firmed? may you not have firmed? may they not have firmed?	may I not have been firming? may you not have been firming? may she not have been firming? may we not have been firming? may you not have been firming? may they not have been firming?