I could banquet you could banquet she could banquet we could banquet you could banquet they could banquet
V-ing form
I could be banqueting you could be banqueting she could be banqueting we could be banqueting you could be banqueting they could be banqueting
Perfect
I could have banqueted you could have banqueted she could have banqueted we could have banqueted you could have banqueted they could have banqueted
V-ing perfect
I could have been banqueting you could have been banqueting she could have been banqueting we could have been banqueting you could have been banqueting they could have been banqueting
Negation
Simple form
I could not banquet you could not banquet she could not banquet we could not banquet you could not banquet they could not banquet
V-ing form
I could not be banqueting you could not be banqueting she could not be banqueting we could not be banqueting you could not be banqueting they could not be banqueting
Perfect
I could not have banqueted you could not have banqueted she could not have banqueted we could not have banqueted you could not have banqueted they could not have banqueted
V-ing perfect
I could not have been banqueting you could not have been banqueting she could not have been banqueting we could not have been banqueting you could not have been banqueting they could not have been banqueting
Interrogative form
Simple form
could I banquet? could you banquet? could she banquet? could we banquet? could you banquet? could they banquet?
V-ing form
could I be banqueting? could you be banqueting? could she be banqueting? could we be banqueting? could you be banqueting? could they be banqueting?
Perfect
could I have banqueted? could you have banqueted? could she have banqueted? could we have banqueted? could you have banqueted? could they have banqueted?
V-ing perfect
could I have been banqueting? could you have been banqueting? could she have been banqueting? could we have been banqueting? could you have been banqueting? could they have been banqueting?
Interro-negative form
Simple form
could I not banquet? could you not banquet? could she not banquet? could we not banquet? could you not banquet? could they not banquet?
V-ing form
could I not be banqueting? could you not be banqueting? could she not be banqueting? could we not be banqueting? could you not be banqueting? could they not be banqueting?
Perfect
could I not have banqueted? could you not have banqueted? could she not have banqueted? could we not have banqueted? could you not have banqueted? could they not have banqueted?
V-ing perfect
could I not have been banqueting? could you not have been banqueting? could she not have been banqueting? could we not have been banqueting? could you not have been banqueting? could they not have been banqueting?