I may kitten you may kitten he may kitten we may kitten you may kitten they may kitten
V-ing form
I may be kittening you may be kittening he may be kittening we may be kittening you may be kittening they may be kittening
Perfect
I may have kittened you may have kittened he may have kittened we may have kittened you may have kittened they may have kittened
V-ing perfect
I may have been kittening you may have been kittening he may have been kittening we may have been kittening you may have been kittening they may have been kittening
Negation
Simple form
I may not kitten you may not kitten he may not kitten we may not kitten you may not kitten they may not kitten
V-ing form
I may not be kittening you may not be kittening he may not be kittening we may not be kittening you may not be kittening they may not be kittening
Perfect
I may not have kittened you may not have kittened he may not have kittened we may not have kittened you may not have kittened they may not have kittened
V-ing perfect
I may not have been kittening you may not have been kittening he may not have been kittening we may not have been kittening you may not have been kittening they may not have been kittening
Interrogative form
Simple form
may I kitten? may you kitten? may he kitten? may we kitten? may you kitten? may they kitten?
V-ing form
may I be kittening? may you be kittening? may he be kittening? may we be kittening? may you be kittening? may they be kittening?
Perfect
may I have kittened? may you have kittened? may he have kittened? may we have kittened? may you have kittened? may they have kittened?
V-ing perfect
may I have been kittening? may you have been kittening? may he have been kittening? may we have been kittening? may you have been kittening? may they have been kittening?
Interro-negative form
Simple form
may I not kitten? may you not kitten? may he not kitten? may we not kitten? may you not kitten? may they not kitten?
V-ing form
may I not be kittening? may you not be kittening? may he not be kittening? may we not be kittening? may you not be kittening? may they not be kittening?
Perfect
may I not have kittened? may you not have kittened? may he not have kittened? may we not have kittened? may you not have kittened? may they not have kittened?
V-ing perfect
may I not have been kittening? may you not have been kittening? may he not have been kittening? may we not have been kittening? may you not have been kittening? may they not have been kittening?