can duplicate
Verbo regular: duplicate - duplicated- duplicated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can duplicate
you can duplicate
he can duplicate
we can duplicate
you can duplicate
they can duplicate 	I can be duplicating
you can be duplicating
he can be duplicating
we can be duplicating
you can be duplicating
they can be duplicating	I can have duplicated
you can have duplicated
he can have duplicated
we can have duplicated
you can have duplicated
they can have duplicated	I can have been duplicating
you can have been duplicating
he can have been duplicating
we can have been duplicating
you can have been duplicating
they can have been duplicating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot duplicate
you cannot duplicate
he cannot duplicate
we cannot duplicate
you cannot duplicate
they cannot duplicate 	I cannot be duplicating
you cannot be duplicating
he cannot be duplicating
we cannot be duplicating
you cannot be duplicating
they cannot be duplicating	I cannot have duplicated
you cannot have duplicated
he cannot have duplicated
we cannot have duplicated
you cannot have duplicated
they cannot have duplicated	I cannot have been duplicating
you cannot have been duplicating
he cannot have been duplicating
we cannot have been duplicating
you cannot have been duplicating
they cannot have been duplicating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I duplicate?
can you duplicate?
can he duplicate?
can we duplicate?
can you duplicate?
can they duplicate? 	can I be duplicating?
can you be duplicating?
can he be duplicating?
can we be duplicating?
can you be duplicating?
can they be duplicating? 	can I have duplicated?
can you have duplicated?
can he have duplicated?
can we have duplicated?
can you have duplicated?
can they have duplicated? 	can I have been duplicating?
can you have been duplicating?
can he have been duplicating?
can we have been duplicating?
can you have been duplicating?
can they have been duplicating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not duplicate?
can you not duplicate?
can he not duplicate?
can we not duplicate?
can you not duplicate?
can they not duplicate? 	can I not be duplicating?
can you not be duplicating?
can he not be duplicating?
can we not be duplicating?
can you not be duplicating?
can they not be duplicating? 	can I not have duplicated?
can you not have duplicated?
can he not have duplicated?
can we not have duplicated?
can you not have duplicated?
can they not have duplicated? 	can I not have been duplicating?
can you not have been duplicating?
can he not have been duplicating?
can we not have been duplicating?
can you not have been duplicating?
can they not have been duplicating?