may jam
Regular verb: jam - jammed- jammed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may jam
you may jam
she may jam
we may jam
you may jam
they may jam 	I may be jamming
you may be jamming
she may be jamming
we may be jamming
you may be jamming
they may be jamming	I may have jammed
you may have jammed
she may have jammed
we may have jammed
you may have jammed
they may have jammed	I may have been jamming
you may have been jamming
she may have been jamming
we may have been jamming
you may have been jamming
they may have been jamming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not jam
you may not jam
she may not jam
we may not jam
you may not jam
they may not jam 	I may not be jamming
you may not be jamming
she may not be jamming
we may not be jamming
you may not be jamming
they may not be jamming	I may not have jammed
you may not have jammed
she may not have jammed
we may not have jammed
you may not have jammed
they may not have jammed	I may not have been jamming
you may not have been jamming
she may not have been jamming
we may not have been jamming
you may not have been jamming
they may not have been jamming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I jam?
may you jam?
may she jam?
may we jam?
may you jam?
may they jam? 	may I be jamming?
may you be jamming?
may she be jamming?
may we be jamming?
may you be jamming?
may they be jamming? 	may I have jammed?
may you have jammed?
may she have jammed?
may we have jammed?
may you have jammed?
may they have jammed? 	may I have been jamming?
may you have been jamming?
may she have been jamming?
may we have been jamming?
may you have been jamming?
may they have been jamming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not jam?
may you not jam?
may she not jam?
may we not jam?
may you not jam?
may they not jam? 	may I not be jamming?
may you not be jamming?
may she not be jamming?
may we not be jamming?
may you not be jamming?
may they not be jamming? 	may I not have jammed?
may you not have jammed?
may she not have jammed?
may we not have jammed?
may you not have jammed?
may they not have jammed? 	may I not have been jamming?
may you not have been jamming?
may she not have been jamming?
may we not have been jamming?
may you not have been jamming?
may they not have been jamming?