English verb conjugation
MAY RUFF

Regular verb: ruff - ruffed - ruffed

Affirmation

Simple form	V-ing form
I may ruff you may ruff she may ruff we may ruff you may ruff they may ruff	I may be ruffing you may be ruffing she may be ruffing we may be ruffing you may be ruffing they may be ruffing
Perfect	V-ing perfect
I may have ruffed you may have ruffed she may have ruffed we may have ruffed you may have ruffed they may have ruffed	I may have been ruffing you may have been ruffing she may have been ruffing we may have been ruffing you may have been ruffing they may have been ruffing

Negation

Simple form	V-ing form
I may not ruff you may not ruff she may not ruff we may not ruff you may not ruff they may not ruff	I may not be ruffing you may not be ruffing she may not be ruffing we may not be ruffing you may not be ruffing they may not be ruffing
Perfect	V-ing perfect
I may not have ruffed you may not have ruffed she may not have ruffed we may not have ruffed you may not have ruffed they may not have ruffed	I may not have been ruffing you may not have been ruffing she may not have been ruffing we may not have been ruffing you may not have been ruffing they may not have been ruffing

Interrogative form

Simple form	V-ing form
may I ruff? may you ruff? may she ruff? may we ruff? may you ruff? may they ruff?	may I be ruffing? may you be ruffing? may she be ruffing? may we be ruffing? may you be ruffing? may they be ruffing?
Perfect	V-ing perfect
may I have ruffed? may you have ruffed? may she have ruffed? may we have ruffed? may you have ruffed? may they have ruffed?	may I have been ruffing? may you have been ruffing? may she have been ruffing? may we have been ruffing? may you have been ruffing? may they have been ruffing?

Interro-negative form

Simple form	V-ing form
may I not ruff? may you not ruff? may she not ruff? may we not ruff? may you not ruff? may they not ruff?	may I not be ruffing? may you not be ruffing? may she not be ruffing? may we not be ruffing? may you not be ruffing? may they not be ruffing?
Perfect	V-ing perfect
may I not have ruffed? may you not have ruffed? may she not have ruffed? may we not have ruffed? may you not have ruffed? may they not have ruffed?	may I not have been ruffing? may you not have been ruffing? may she not have been ruffing? may we not have been ruffing? may you not have been ruffing? may they not have been ruffing?