may staple
Regular verb: staple - stapled- stapled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may staple
you may staple
she may staple
we may staple
you may staple
they may staple 	I may be stapling
you may be stapling
she may be stapling
we may be stapling
you may be stapling
they may be stapling	I may have stapled
you may have stapled
she may have stapled
we may have stapled
you may have stapled
they may have stapled	I may have been stapling
you may have been stapling
she may have been stapling
we may have been stapling
you may have been stapling
they may have been stapling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not staple
you may not staple
she may not staple
we may not staple
you may not staple
they may not staple 	I may not be stapling
you may not be stapling
she may not be stapling
we may not be stapling
you may not be stapling
they may not be stapling	I may not have stapled
you may not have stapled
she may not have stapled
we may not have stapled
you may not have stapled
they may not have stapled	I may not have been stapling
you may not have been stapling
she may not have been stapling
we may not have been stapling
you may not have been stapling
they may not have been stapling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I staple?
may you staple?
may she staple?
may we staple?
may you staple?
may they staple? 	may I be stapling?
may you be stapling?
may she be stapling?
may we be stapling?
may you be stapling?
may they be stapling? 	may I have stapled?
may you have stapled?
may she have stapled?
may we have stapled?
may you have stapled?
may they have stapled? 	may I have been stapling?
may you have been stapling?
may she have been stapling?
may we have been stapling?
may you have been stapling?
may they have been stapling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not staple?
may you not staple?
may she not staple?
may we not staple?
may you not staple?
may they not staple? 	may I not be stapling?
may you not be stapling?
may she not be stapling?
may we not be stapling?
may you not be stapling?
may they not be stapling? 	may I not have stapled?
may you not have stapled?
may she not have stapled?
may we not have stapled?
may you not have stapled?
may they not have stapled? 	may I not have been stapling?
may you not have been stapling?
may she not have been stapling?
may we not have been stapling?
may you not have been stapling?
may they not have been stapling?