may stop
Regular verb: stop - stopped- stopped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may stop
you may stop
she may stop
we may stop
you may stop
they may stop 	I may be stopping
you may be stopping
she may be stopping
we may be stopping
you may be stopping
they may be stopping	I may have stopped
you may have stopped
she may have stopped
we may have stopped
you may have stopped
they may have stopped	I may have been stopping
you may have been stopping
she may have been stopping
we may have been stopping
you may have been stopping
they may have been stopping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't stop
you mayn't stop
she mayn't stop
we mayn't stop
you mayn't stop
they mayn't stop 	I mayn't be stopping
you mayn't be stopping
she mayn't be stopping
we mayn't be stopping
you mayn't be stopping
they mayn't be stopping	I mayn't have stopped
you mayn't have stopped
she mayn't have stopped
we mayn't have stopped
you mayn't have stopped
they mayn't have stopped	I mayn't have been stopping
you mayn't have been stopping
she mayn't have been stopping
we mayn't have been stopping
you mayn't have been stopping
they mayn't have been stopping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I stop?
may you stop?
may she stop?
may we stop?
may you stop?
may they stop? 	may I be stopping?
may you be stopping?
may she be stopping?
may we be stopping?
may you be stopping?
may they be stopping? 	may I have stopped?
may you have stopped?
may she have stopped?
may we have stopped?
may you have stopped?
may they have stopped? 	may I have been stopping?
may you have been stopping?
may she have been stopping?
may we have been stopping?
may you have been stopping?
may they have been stopping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I stop?
mayn't you stop?
mayn't she stop?
mayn't we stop?
mayn't you stop?
mayn't they stop? 	mayn't I be stopping?
mayn't you be stopping?
mayn't she be stopping?
mayn't we be stopping?
mayn't you be stopping?
mayn't they be stopping? 	mayn't I have stopped?
mayn't you have stopped?
mayn't she have stopped?
mayn't we have stopped?
mayn't you have stopped?
mayn't they have stopped? 	mayn't I have been stopping?
mayn't you have been stopping?
mayn't she have been stopping?
mayn't we have been stopping?
mayn't you have been stopping?
mayn't they have been stopping?