English verb conjugation
MAY SCREW

Regular verb: screw - screwed - screwed

Affirmation

Simple form	V-ing form
I may screw you may screw he may screw we may screw you may screw they may screw	I may be screwing you may be screwing he may be screwing we may be screwing you may be screwing they may be screwing
Perfect	V-ing perfect
I may have screwed you may have screwed he may have screwed we may have screwed you may have screwed they may have screwed	I may have been screwing you may have been screwing he may have been screwing we may have been screwing you may have been screwing they may have been screwing

Negation

Simple form	V-ing form
I mayn't screw you mayn't screw he mayn't screw we mayn't screw you mayn't screw they mayn't screw	I mayn't be screwing you mayn't be screwing he mayn't be screwing we mayn't be screwing you mayn't be screwing they mayn't be screwing
Perfect	V-ing perfect
I mayn't have screwed you mayn't have screwed he mayn't have screwed we mayn't have screwed you mayn't have screwed they mayn't have screwed	I mayn't have been screwing you mayn't have been screwing he mayn't have been screwing we mayn't have been screwing you mayn't have been screwing they mayn't have been screwing

Interrogative form

Simple form	V-ing form
may I screw? may you screw? may he screw? may we screw? may you screw? may they screw?	may I be screwing? may you be screwing? may he be screwing? may we be screwing? may you be screwing? may they be screwing?
Perfect	V-ing perfect
may I have screwed? may you have screwed? may he have screwed? may we have screwed? may you have screwed? may they have screwed?	may I have been screwing? may you have been screwing? may he have been screwing? may we have been screwing? may you have been screwing? may they have been screwing?

Interro-negative form

Simple form	V-ing form
mayn't I screw? mayn't you screw? mayn't he screw? mayn't we screw? mayn't you screw? mayn't they screw?	mayn't I be screwing? mayn't you be screwing? mayn't he be screwing? mayn't we be screwing? mayn't you be screwing? mayn't they be screwing?
Perfect	V-ing perfect
mayn't I have screwed? mayn't you have screwed? mayn't he have screwed? mayn't we have screwed? mayn't you have screwed? mayn't they have screwed?	mayn't I have been screwing? mayn't you have been screwing? mayn't he have been screwing? mayn't we have been screwing? mayn't you have been screwing? mayn't they have been screwing?