English verb conjugation
MAY RUFF

Regular verb: ruff - ruffed - ruffed

Affirmation

Simple form	V-ing form
I may ruff you may ruff he may ruff we may ruff you may ruff they may ruff	I may be ruffing you may be ruffing he 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 he 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 he 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 he 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 he 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 he 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 he 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 he ruff? may we ruff? may you ruff? may they ruff?	may I be ruffing? may you be ruffing? may he 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 he 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 he 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 he 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 he 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 he 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 he not have been ruffing? may we not have been ruffing? may you not have been ruffing? may they not have been ruffing?