could quintuplicate
Verbe régulier : quintuplicate - quintuplicated- quintuplicated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could quintuplicate
you could quintuplicate
he could quintuplicate
we could quintuplicate
you could quintuplicate
they could quintuplicate 	I could be quintuplicating
you could be quintuplicating
he could be quintuplicating
we could be quintuplicating
you could be quintuplicating
they could be quintuplicating	I could have quintuplicated
you could have quintuplicated
he could have quintuplicated
we could have quintuplicated
you could have quintuplicated
they could have quintuplicated	I could have been quintuplicating
you could have been quintuplicating
he could have been quintuplicating
we could have been quintuplicating
you could have been quintuplicating
they could have been quintuplicating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't quintuplicate
you couldn't quintuplicate
he couldn't quintuplicate
we couldn't quintuplicate
you couldn't quintuplicate
they couldn't quintuplicate 	I couldn't be quintuplicating
you couldn't be quintuplicating
he couldn't be quintuplicating
we couldn't be quintuplicating
you couldn't be quintuplicating
they couldn't be quintuplicating	I couldn't have quintuplicated
you couldn't have quintuplicated
he couldn't have quintuplicated
we couldn't have quintuplicated
you couldn't have quintuplicated
they couldn't have quintuplicated	I couldn't have been quintuplicating
you couldn't have been quintuplicating
he couldn't have been quintuplicating
we couldn't have been quintuplicating
you couldn't have been quintuplicating
they couldn't have been quintuplicating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I quintuplicate?
could you quintuplicate?
could he quintuplicate?
could we quintuplicate?
could you quintuplicate?
could they quintuplicate? 	could I be quintuplicating?
could you be quintuplicating?
could he be quintuplicating?
could we be quintuplicating?
could you be quintuplicating?
could they be quintuplicating? 	could I have quintuplicated?
could you have quintuplicated?
could he have quintuplicated?
could we have quintuplicated?
could you have quintuplicated?
could they have quintuplicated? 	could I have been quintuplicating?
could you have been quintuplicating?
could he have been quintuplicating?
could we have been quintuplicating?
could you have been quintuplicating?
could they have been quintuplicating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I quintuplicate?
couldn't you quintuplicate?
couldn't he quintuplicate?
couldn't we quintuplicate?
couldn't you quintuplicate?
couldn't they quintuplicate? 	couldn't I be quintuplicating?
couldn't you be quintuplicating?
couldn't he be quintuplicating?
couldn't we be quintuplicating?
couldn't you be quintuplicating?
couldn't they be quintuplicating? 	couldn't I have quintuplicated?
couldn't you have quintuplicated?
couldn't he have quintuplicated?
couldn't we have quintuplicated?
couldn't you have quintuplicated?
couldn't they have quintuplicated? 	couldn't I have been quintuplicating?
couldn't you have been quintuplicating?
couldn't he have been quintuplicating?
couldn't we have been quintuplicating?
couldn't you have been quintuplicating?
couldn't they have been quintuplicating?