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 mayn't kitten you mayn't kitten he mayn't kitten we mayn't kitten you mayn't kitten they mayn't kitten
V-ing form
I mayn't be kittening you mayn't be kittening he mayn't be kittening we mayn't be kittening you mayn't be kittening they mayn't be kittening
Perfect
I mayn't have kittened you mayn't have kittened he mayn't have kittened we mayn't have kittened you mayn't have kittened they mayn't have kittened
V-ing perfect
I mayn't have been kittening you mayn't have been kittening he mayn't have been kittening we mayn't have been kittening you mayn't have been kittening they mayn't 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
mayn't I kitten? mayn't you kitten? mayn't he kitten? mayn't we kitten? mayn't you kitten? mayn't they kitten?
V-ing form
mayn't I be kittening? mayn't you be kittening? mayn't he be kittening? mayn't we be kittening? mayn't you be kittening? mayn't they be kittening?
Perfect
mayn't I have kittened? mayn't you have kittened? mayn't he have kittened? mayn't we have kittened? mayn't you have kittened? mayn't they have kittened?
V-ing perfect
mayn't I have been kittening? mayn't you have been kittening? mayn't he have been kittening? mayn't we have been kittening? mayn't you have been kittening? mayn't they have been kittening?