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 couldn't inventory you couldn't inventory he couldn't inventory we couldn't inventory you couldn't inventory they couldn't inventory	I couldn't be inventorying you couldn't be inventorying he couldn't be inventorying we couldn't be inventorying you couldn't be inventorying they couldn't be inventorying
Perfect	V-ing perfect
I couldn't have inventoried you couldn't have inventoried he couldn't have inventoried we couldn't have inventoried you couldn't have inventoried they couldn't have inventoried	I couldn't have been inventorying you couldn't have been inventorying he couldn't have been inventorying we couldn't have been inventorying you couldn't have been inventorying they couldn't 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
couldn't I inventory? couldn't you inventory? couldn't he inventory? couldn't we inventory? couldn't you inventory? couldn't they inventory?	couldn't I be inventorying? couldn't you be inventorying? couldn't he be inventorying? couldn't we be inventorying? couldn't you be inventorying? couldn't they be inventorying?
Perfect	V-ing perfect
couldn't I have inventoried? couldn't you have inventoried? couldn't he have inventoried? couldn't we have inventoried? couldn't you have inventoried? couldn't they have inventoried?	couldn't I have been inventorying? couldn't you have been inventorying? couldn't he have been inventorying? couldn't we have been inventorying? couldn't you have been inventorying? couldn't they have been inventorying?