may jump-start
Regular verb: jump-start - jump-started- jump-started

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may jump-start
you may jump-start
she may jump-start
we may jump-start
you may jump-start
they may jump-start 	I may be jump-starting
you may be jump-starting
she may be jump-starting
we may be jump-starting
you may be jump-starting
they may be jump-starting	I may have jump-started
you may have jump-started
she may have jump-started
we may have jump-started
you may have jump-started
they may have jump-started	I may have been jump-starting
you may have been jump-starting
she may have been jump-starting
we may have been jump-starting
you may have been jump-starting
they may have been jump-starting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't jump-start
you mayn't jump-start
she mayn't jump-start
we mayn't jump-start
you mayn't jump-start
they mayn't jump-start 	I mayn't be jump-starting
you mayn't be jump-starting
she mayn't be jump-starting
we mayn't be jump-starting
you mayn't be jump-starting
they mayn't be jump-starting	I mayn't have jump-started
you mayn't have jump-started
she mayn't have jump-started
we mayn't have jump-started
you mayn't have jump-started
they mayn't have jump-started	I mayn't have been jump-starting
you mayn't have been jump-starting
she mayn't have been jump-starting
we mayn't have been jump-starting
you mayn't have been jump-starting
they mayn't have been jump-starting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I jump-start?
may you jump-start?
may she jump-start?
may we jump-start?
may you jump-start?
may they jump-start? 	may I be jump-starting?
may you be jump-starting?
may she be jump-starting?
may we be jump-starting?
may you be jump-starting?
may they be jump-starting? 	may I have jump-started?
may you have jump-started?
may she have jump-started?
may we have jump-started?
may you have jump-started?
may they have jump-started? 	may I have been jump-starting?
may you have been jump-starting?
may she have been jump-starting?
may we have been jump-starting?
may you have been jump-starting?
may they have been jump-starting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I jump-start?
mayn't you jump-start?
mayn't she jump-start?
mayn't we jump-start?
mayn't you jump-start?
mayn't they jump-start? 	mayn't I be jump-starting?
mayn't you be jump-starting?
mayn't she be jump-starting?
mayn't we be jump-starting?
mayn't you be jump-starting?
mayn't they be jump-starting? 	mayn't I have jump-started?
mayn't you have jump-started?
mayn't she have jump-started?
mayn't we have jump-started?
mayn't you have jump-started?
mayn't they have jump-started? 	mayn't I have been jump-starting?
mayn't you have been jump-starting?
mayn't she have been jump-starting?
mayn't we have been jump-starting?
mayn't you have been jump-starting?
mayn't they have been jump-starting?