I could merchandize you could merchandize she could merchandize we could merchandize you could merchandize they could merchandize
V-ing form
I could be merchandizing you could be merchandizing she could be merchandizing we could be merchandizing you could be merchandizing they could be merchandizing
Perfect
I could have merchandized you could have merchandized she could have merchandized we could have merchandized you could have merchandized they could have merchandized
V-ing perfect
I could have been merchandizing you could have been merchandizing she could have been merchandizing we could have been merchandizing you could have been merchandizing they could have been merchandizing
Negation
Simple form
I could not merchandize you could not merchandize she could not merchandize we could not merchandize you could not merchandize they could not merchandize
V-ing form
I could not be merchandizing you could not be merchandizing she could not be merchandizing we could not be merchandizing you could not be merchandizing they could not be merchandizing
Perfect
I could not have merchandized you could not have merchandized she could not have merchandized we could not have merchandized you could not have merchandized they could not have merchandized
V-ing perfect
I could not have been merchandizing you could not have been merchandizing she could not have been merchandizing we could not have been merchandizing you could not have been merchandizing they could not have been merchandizing
Interrogative form
Simple form
could I merchandize? could you merchandize? could she merchandize? could we merchandize? could you merchandize? could they merchandize?
V-ing form
could I be merchandizing? could you be merchandizing? could she be merchandizing? could we be merchandizing? could you be merchandizing? could they be merchandizing?
Perfect
could I have merchandized? could you have merchandized? could she have merchandized? could we have merchandized? could you have merchandized? could they have merchandized?
V-ing perfect
could I have been merchandizing? could you have been merchandizing? could she have been merchandizing? could we have been merchandizing? could you have been merchandizing? could they have been merchandizing?
Interro-negative form
Simple form
could I not merchandize? could you not merchandize? could she not merchandize? could we not merchandize? could you not merchandize? could they not merchandize?
V-ing form
could I not be merchandizing? could you not be merchandizing? could she not be merchandizing? could we not be merchandizing? could you not be merchandizing? could they not be merchandizing?
Perfect
could I not have merchandized? could you not have merchandized? could she not have merchandized? could we not have merchandized? could you not have merchandized? could they not have merchandized?
V-ing perfect
could I not have been merchandizing? could you not have been merchandizing? could she not have been merchandizing? could we not have been merchandizing? could you not have been merchandizing? could they not have been merchandizing?