I could merchandize you could merchandize he could merchandize we could merchandize you could merchandize they could merchandize
V-ing form
I could be merchandizing you could be merchandizing he could be merchandizing we could be merchandizing you could be merchandizing they could be merchandizing
Perfect
I could have merchandized you could have merchandized he 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 he could have been merchandizing we could have been merchandizing you could have been merchandizing they could have been merchandizing
Negation
Simple form
I couldn't merchandize you couldn't merchandize he couldn't merchandize we couldn't merchandize you couldn't merchandize they couldn't merchandize
V-ing form
I couldn't be merchandizing you couldn't be merchandizing he couldn't be merchandizing we couldn't be merchandizing you couldn't be merchandizing they couldn't be merchandizing
Perfect
I couldn't have merchandized you couldn't have merchandized he couldn't have merchandized we couldn't have merchandized you couldn't have merchandized they couldn't have merchandized
V-ing perfect
I couldn't have been merchandizing you couldn't have been merchandizing he couldn't have been merchandizing we couldn't have been merchandizing you couldn't have been merchandizing they couldn't have been merchandizing
Interrogative form
Simple form
could I merchandize? could you merchandize? could he merchandize? could we merchandize? could you merchandize? could they merchandize?
V-ing form
could I be merchandizing? could you be merchandizing? could he be merchandizing? could we be merchandizing? could you be merchandizing? could they be merchandizing?
Perfect
could I have merchandized? could you have merchandized? could he 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 he have been merchandizing? could we have been merchandizing? could you have been merchandizing? could they have been merchandizing?
Interro-negative form
Simple form
couldn't I merchandize? couldn't you merchandize? couldn't he merchandize? couldn't we merchandize? couldn't you merchandize? couldn't they merchandize?
V-ing form
couldn't I be merchandizing? couldn't you be merchandizing? couldn't he be merchandizing? couldn't we be merchandizing? couldn't you be merchandizing? couldn't they be merchandizing?
Perfect
couldn't I have merchandized? couldn't you have merchandized? couldn't he have merchandized? couldn't we have merchandized? couldn't you have merchandized? couldn't they have merchandized?
V-ing perfect
couldn't I have been merchandizing? couldn't you have been merchandizing? couldn't he have been merchandizing? couldn't we have been merchandizing? couldn't you have been merchandizing? couldn't they have been merchandizing?