I may sew you may sew she may sew we may sew you may sew they may sew
V-ing form
I may be sewing you may be sewing she may be sewing we may be sewing you may be sewing they may be sewing
Perfect
I may have sewn you may have sewn she may have sewn we may have sewn you may have sewn they may have sewn
V-ing perfect
I may have been sewing you may have been sewing she may have been sewing we may have been sewing you may have been sewing they may have been sewing
Negation
Simple form
I mayn't sew you mayn't sew she mayn't sew we mayn't sew you mayn't sew they mayn't sew
V-ing form
I mayn't be sewing you mayn't be sewing she mayn't be sewing we mayn't be sewing you mayn't be sewing they mayn't be sewing
Perfect
I mayn't have sewn you mayn't have sewn she mayn't have sewn we mayn't have sewn you mayn't have sewn they mayn't have sewn
V-ing perfect
I mayn't have been sewing you mayn't have been sewing she mayn't have been sewing we mayn't have been sewing you mayn't have been sewing they mayn't have been sewing
Interrogative form
Simple form
may I sew? may you sew? may she sew? may we sew? may you sew? may they sew?
V-ing form
may I be sewing? may you be sewing? may she be sewing? may we be sewing? may you be sewing? may they be sewing?
Perfect
may I have sewn? may you have sewn? may she have sewn? may we have sewn? may you have sewn? may they have sewn?
V-ing perfect
may I have been sewing? may you have been sewing? may she have been sewing? may we have been sewing? may you have been sewing? may they have been sewing?
Interro-negative form
Simple form
mayn't I sew? mayn't you sew? mayn't she sew? mayn't we sew? mayn't you sew? mayn't they sew?
V-ing form
mayn't I be sewing? mayn't you be sewing? mayn't she be sewing? mayn't we be sewing? mayn't you be sewing? mayn't they be sewing?
Perfect
mayn't I have sewn? mayn't you have sewn? mayn't she have sewn? mayn't we have sewn? mayn't you have sewn? mayn't they have sewn?
V-ing perfect
mayn't I have been sewing? mayn't you have been sewing? mayn't she have been sewing? mayn't we have been sewing? mayn't you have been sewing? mayn't they have been sewing?