may quadruplicate
Regular verb: quadruplicate - quadruplicated- quadruplicated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may quadruplicate
you may quadruplicate
she may quadruplicate
we may quadruplicate
you may quadruplicate
they may quadruplicate 	I may be quadruplicating
you may be quadruplicating
she may be quadruplicating
we may be quadruplicating
you may be quadruplicating
they may be quadruplicating	I may have quadruplicated
you may have quadruplicated
she may have quadruplicated
we may have quadruplicated
you may have quadruplicated
they may have quadruplicated	I may have been quadruplicating
you may have been quadruplicating
she may have been quadruplicating
we may have been quadruplicating
you may have been quadruplicating
they may have been quadruplicating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't quadruplicate
you mayn't quadruplicate
she mayn't quadruplicate
we mayn't quadruplicate
you mayn't quadruplicate
they mayn't quadruplicate 	I mayn't be quadruplicating
you mayn't be quadruplicating
she mayn't be quadruplicating
we mayn't be quadruplicating
you mayn't be quadruplicating
they mayn't be quadruplicating	I mayn't have quadruplicated
you mayn't have quadruplicated
she mayn't have quadruplicated
we mayn't have quadruplicated
you mayn't have quadruplicated
they mayn't have quadruplicated	I mayn't have been quadruplicating
you mayn't have been quadruplicating
she mayn't have been quadruplicating
we mayn't have been quadruplicating
you mayn't have been quadruplicating
they mayn't have been quadruplicating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I quadruplicate?
may you quadruplicate?
may she quadruplicate?
may we quadruplicate?
may you quadruplicate?
may they quadruplicate? 	may I be quadruplicating?
may you be quadruplicating?
may she be quadruplicating?
may we be quadruplicating?
may you be quadruplicating?
may they be quadruplicating? 	may I have quadruplicated?
may you have quadruplicated?
may she have quadruplicated?
may we have quadruplicated?
may you have quadruplicated?
may they have quadruplicated? 	may I have been quadruplicating?
may you have been quadruplicating?
may she have been quadruplicating?
may we have been quadruplicating?
may you have been quadruplicating?
may they have been quadruplicating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I quadruplicate?
mayn't you quadruplicate?
mayn't she quadruplicate?
mayn't we quadruplicate?
mayn't you quadruplicate?
mayn't they quadruplicate? 	mayn't I be quadruplicating?
mayn't you be quadruplicating?
mayn't she be quadruplicating?
mayn't we be quadruplicating?
mayn't you be quadruplicating?
mayn't they be quadruplicating? 	mayn't I have quadruplicated?
mayn't you have quadruplicated?
mayn't she have quadruplicated?
mayn't we have quadruplicated?
mayn't you have quadruplicated?
mayn't they have quadruplicated? 	mayn't I have been quadruplicating?
mayn't you have been quadruplicating?
mayn't she have been quadruplicating?
mayn't we have been quadruplicating?
mayn't you have been quadruplicating?
mayn't they have been quadruplicating?