English verb conjugation
COULD INVENTORY

Regular verb: inventory - inventoried - inventoried

Affirmation

Simple form	V-ing form
I could inventory you could inventory he could inventory we could inventory you could inventory they could inventory	I could be inventorying you could be inventorying he could be inventorying we could be inventorying you could be inventorying they could be inventorying
Perfect	V-ing perfect
I could have inventoried you could have inventoried he could have inventoried we could have inventoried you could have inventoried they could have inventoried	I could have been inventorying you could have been inventorying he could have been inventorying we could have been inventorying you could have been inventorying they could have been inventorying

Negation

Simple form	V-ing form
I could not inventory you could not inventory he could not inventory we could not inventory you could not inventory they could not inventory	I could not be inventorying you could not be inventorying he could not be inventorying we could not be inventorying you could not be inventorying they could not be inventorying
Perfect	V-ing perfect
I could not have inventoried you could not have inventoried he could not have inventoried we could not have inventoried you could not have inventoried they could not have inventoried	I could not have been inventorying you could not have been inventorying he could not have been inventorying we could not have been inventorying you could not have been inventorying they could not have been inventorying

Interrogative form

Simple form	V-ing form
could I inventory? could you inventory? could he inventory? could we inventory? could you inventory? could they inventory?	could I be inventorying? could you be inventorying? could he be inventorying? could we be inventorying? could you be inventorying? could they be inventorying?
Perfect	V-ing perfect
could I have inventoried? could you have inventoried? could he have inventoried? could we have inventoried? could you have inventoried? could they have inventoried?	could I have been inventorying? could you have been inventorying? could he have been inventorying? could we have been inventorying? could you have been inventorying? could they have been inventorying?

Interro-negative form

Simple form	V-ing form
could I not inventory? could you not inventory? could he not inventory? could we not inventory? could you not inventory? could they not inventory?	could I not be inventorying? could you not be inventorying? could he not be inventorying? could we not be inventorying? could you not be inventorying? could they not be inventorying?
Perfect	V-ing perfect
could I not have inventoried? could you not have inventoried? could he not have inventoried? could we not have inventoried? could you not have inventoried? could they not have inventoried?	could I not have been inventorying? could you not have been inventorying? could he not have been inventorying? could we not have been inventorying? could you not have been inventorying? could they not have been inventorying?