may undo
Irregular verb: undo - undid- undone

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may undo
you may undo
she may undo
we may undo
you may undo
they may undo 	I may be undoing
you may be undoing
she may be undoing
we may be undoing
you may be undoing
they may be undoing	I may have undone
you may have undone
she may have undone
we may have undone
you may have undone
they may have undone	I may have been undoing
you may have been undoing
she may have been undoing
we may have been undoing
you may have been undoing
they may have been undoing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't undo
you mayn't undo
she mayn't undo
we mayn't undo
you mayn't undo
they mayn't undo 	I mayn't be undoing
you mayn't be undoing
she mayn't be undoing
we mayn't be undoing
you mayn't be undoing
they mayn't be undoing	I mayn't have undone
you mayn't have undone
she mayn't have undone
we mayn't have undone
you mayn't have undone
they mayn't have undone	I mayn't have been undoing
you mayn't have been undoing
she mayn't have been undoing
we mayn't have been undoing
you mayn't have been undoing
they mayn't have been undoing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I undo?
may you undo?
may she undo?
may we undo?
may you undo?
may they undo? 	may I be undoing?
may you be undoing?
may she be undoing?
may we be undoing?
may you be undoing?
may they be undoing? 	may I have undone?
may you have undone?
may she have undone?
may we have undone?
may you have undone?
may they have undone? 	may I have been undoing?
may you have been undoing?
may she have been undoing?
may we have been undoing?
may you have been undoing?
may they have been undoing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I undo?
mayn't you undo?
mayn't she undo?
mayn't we undo?
mayn't you undo?
mayn't they undo? 	mayn't I be undoing?
mayn't you be undoing?
mayn't she be undoing?
mayn't we be undoing?
mayn't you be undoing?
mayn't they be undoing? 	mayn't I have undone?
mayn't you have undone?
mayn't she have undone?
mayn't we have undone?
mayn't you have undone?
mayn't they have undone? 	mayn't I have been undoing?
mayn't you have been undoing?
mayn't she have been undoing?
mayn't we have been undoing?
mayn't you have been undoing?
mayn't they have been undoing?