could quantitate
Regular verb: quantitate - quantitated- quantitated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could quantitate
you could quantitate
he could quantitate
we could quantitate
you could quantitate
they could quantitate 	I could be quantitating
you could be quantitating
he could be quantitating
we could be quantitating
you could be quantitating
they could be quantitating	I could have quantitated
you could have quantitated
he could have quantitated
we could have quantitated
you could have quantitated
they could have quantitated	I could have been quantitating
you could have been quantitating
he could have been quantitating
we could have been quantitating
you could have been quantitating
they could have been quantitating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not quantitate
you could not quantitate
he could not quantitate
we could not quantitate
you could not quantitate
they could not quantitate 	I could not be quantitating
you could not be quantitating
he could not be quantitating
we could not be quantitating
you could not be quantitating
they could not be quantitating	I could not have quantitated
you could not have quantitated
he could not have quantitated
we could not have quantitated
you could not have quantitated
they could not have quantitated	I could not have been quantitating
you could not have been quantitating
he could not have been quantitating
we could not have been quantitating
you could not have been quantitating
they could not have been quantitating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I quantitate?
could you quantitate?
could he quantitate?
could we quantitate?
could you quantitate?
could they quantitate? 	could I be quantitating?
could you be quantitating?
could he be quantitating?
could we be quantitating?
could you be quantitating?
could they be quantitating? 	could I have quantitated?
could you have quantitated?
could he have quantitated?
could we have quantitated?
could you have quantitated?
could they have quantitated? 	could I have been quantitating?
could you have been quantitating?
could he have been quantitating?
could we have been quantitating?
could you have been quantitating?
could they have been quantitating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not quantitate?
could you not quantitate?
could he not quantitate?
could we not quantitate?
could you not quantitate?
could they not quantitate? 	could I not be quantitating?
could you not be quantitating?
could he not be quantitating?
could we not be quantitating?
could you not be quantitating?
could they not be quantitating? 	could I not have quantitated?
could you not have quantitated?
could he not have quantitated?
could we not have quantitated?
could you not have quantitated?
could they not have quantitated? 	could I not have been quantitating?
could you not have been quantitating?
could he not have been quantitating?
could we not have been quantitating?
could you not have been quantitating?
could they not have been quantitating?