may overturn
Regular verb: overturn - overturned- overturned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may overturn
you may overturn
she may overturn
we may overturn
you may overturn
they may overturn 	I may be overturning
you may be overturning
she may be overturning
we may be overturning
you may be overturning
they may be overturning	I may have overturned
you may have overturned
she may have overturned
we may have overturned
you may have overturned
they may have overturned	I may have been overturning
you may have been overturning
she may have been overturning
we may have been overturning
you may have been overturning
they may have been overturning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't overturn
you mayn't overturn
she mayn't overturn
we mayn't overturn
you mayn't overturn
they mayn't overturn 	I mayn't be overturning
you mayn't be overturning
she mayn't be overturning
we mayn't be overturning
you mayn't be overturning
they mayn't be overturning	I mayn't have overturned
you mayn't have overturned
she mayn't have overturned
we mayn't have overturned
you mayn't have overturned
they mayn't have overturned	I mayn't have been overturning
you mayn't have been overturning
she mayn't have been overturning
we mayn't have been overturning
you mayn't have been overturning
they mayn't have been overturning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I overturn?
may you overturn?
may she overturn?
may we overturn?
may you overturn?
may they overturn? 	may I be overturning?
may you be overturning?
may she be overturning?
may we be overturning?
may you be overturning?
may they be overturning? 	may I have overturned?
may you have overturned?
may she have overturned?
may we have overturned?
may you have overturned?
may they have overturned? 	may I have been overturning?
may you have been overturning?
may she have been overturning?
may we have been overturning?
may you have been overturning?
may they have been overturning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I overturn?
mayn't you overturn?
mayn't she overturn?
mayn't we overturn?
mayn't you overturn?
mayn't they overturn? 	mayn't I be overturning?
mayn't you be overturning?
mayn't she be overturning?
mayn't we be overturning?
mayn't you be overturning?
mayn't they be overturning? 	mayn't I have overturned?
mayn't you have overturned?
mayn't she have overturned?
mayn't we have overturned?
mayn't you have overturned?
mayn't they have overturned? 	mayn't I have been overturning?
mayn't you have been overturning?
mayn't she have been overturning?
mayn't we have been overturning?
mayn't you have been overturning?
mayn't they have been overturning?