may duplicate
Regular verb: duplicate - duplicated- duplicated

Affirmation 	
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I may duplicate
you may duplicate
he may duplicate
we may duplicate
you may duplicate
they may duplicate 	I may be duplicating
you may be duplicating
he may be duplicating
we may be duplicating
you may be duplicating
they may be duplicating	I may have duplicated
you may have duplicated
he may have duplicated
we may have duplicated
you may have duplicated
they may have duplicated	I may have been duplicating
you may have been duplicating
he may have been duplicating
we may have been duplicating
you may have been duplicating
they may have been duplicating	

Negation 	
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I may not duplicate
you may not duplicate
he may not duplicate
we may not duplicate
you may not duplicate
they may not duplicate 	I may not be duplicating
you may not be duplicating
he may not be duplicating
we may not be duplicating
you may not be duplicating
they may not be duplicating	I may not have duplicated
you may not have duplicated
he may not have duplicated
we may not have duplicated
you may not have duplicated
they may not have duplicated	I may not have been duplicating
you may not have been duplicating
he may not have been duplicating
we may not have been duplicating
you may not have been duplicating
they may not have been duplicating	

Interrogative form 	
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may I duplicate?
may you duplicate?
may he duplicate?
may we duplicate?
may you duplicate?
may they duplicate? 	may I be duplicating?
may you be duplicating?
may he be duplicating?
may we be duplicating?
may you be duplicating?
may they be duplicating? 	may I have duplicated?
may you have duplicated?
may he have duplicated?
may we have duplicated?
may you have duplicated?
may they have duplicated? 	may I have been duplicating?
may you have been duplicating?
may he have been duplicating?
may we have been duplicating?
may you have been duplicating?
may they have been duplicating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not duplicate?
may you not duplicate?
may he not duplicate?
may we not duplicate?
may you not duplicate?
may they not duplicate? 	may I not be duplicating?
may you not be duplicating?
may he not be duplicating?
may we not be duplicating?
may you not be duplicating?
may they not be duplicating? 	may I not have duplicated?
may you not have duplicated?
may he not have duplicated?
may we not have duplicated?
may you not have duplicated?
may they not have duplicated? 	may I not have been duplicating?
may you not have been duplicating?
may he not have been duplicating?
may we not have been duplicating?
may you not have been duplicating?
may they not have been duplicating?