English verb conjugation
COULD QUANTITATE

Regular verb: quantitate - quantitated - quantitated

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?