English verb conjugation
MAY UPSHIFT

Regular verb: upshift - upshifted - upshifted

Affirmation

Simple form	V-ing form
I may upshift you may upshift he may upshift we may upshift you may upshift they may upshift	I may be upshifting you may be upshifting he may be upshifting we may be upshifting you may be upshifting they may be upshifting
Perfect	V-ing perfect
I may have upshifted you may have upshifted he may have upshifted we may have upshifted you may have upshifted they may have upshifted	I may have been upshifting you may have been upshifting he may have been upshifting we may have been upshifting you may have been upshifting they may have been upshifting

Negation

Simple form	V-ing form
I mayn't upshift you mayn't upshift he mayn't upshift we mayn't upshift you mayn't upshift they mayn't upshift	I mayn't be upshifting you mayn't be upshifting he mayn't be upshifting we mayn't be upshifting you mayn't be upshifting they mayn't be upshifting
Perfect	V-ing perfect
I mayn't have upshifted you mayn't have upshifted he mayn't have upshifted we mayn't have upshifted you mayn't have upshifted they mayn't have upshifted	I mayn't have been upshifting you mayn't have been upshifting he mayn't have been upshifting we mayn't have been upshifting you mayn't have been upshifting they mayn't have been upshifting

Interrogative form

Simple form	V-ing form
may I upshift? may you upshift? may he upshift? may we upshift? may you upshift? may they upshift?	may I be upshifting? may you be upshifting? may he be upshifting? may we be upshifting? may you be upshifting? may they be upshifting?
Perfect	V-ing perfect
may I have upshifted? may you have upshifted? may he have upshifted? may we have upshifted? may you have upshifted? may they have upshifted?	may I have been upshifting? may you have been upshifting? may he have been upshifting? may we have been upshifting? may you have been upshifting? may they have been upshifting?

Interro-negative form

Simple form	V-ing form
mayn't I upshift? mayn't you upshift? mayn't he upshift? mayn't we upshift? mayn't you upshift? mayn't they upshift?	mayn't I be upshifting? mayn't you be upshifting? mayn't he be upshifting? mayn't we be upshifting? mayn't you be upshifting? mayn't they be upshifting?
Perfect	V-ing perfect
mayn't I have upshifted? mayn't you have upshifted? mayn't he have upshifted? mayn't we have upshifted? mayn't you have upshifted? mayn't they have upshifted?	mayn't I have been upshifting? mayn't you have been upshifting? mayn't he have been upshifting? mayn't we have been upshifting? mayn't you have been upshifting? mayn't they have been upshifting?