I could emphasize you could emphasize she could emphasize we could emphasize you could emphasize they could emphasize
V-ing form
I could be emphasizing you could be emphasizing she could be emphasizing we could be emphasizing you could be emphasizing they could be emphasizing
Perfect
I could have emphasized you could have emphasized she could have emphasized we could have emphasized you could have emphasized they could have emphasized
V-ing perfect
I could have been emphasizing you could have been emphasizing she could have been emphasizing we could have been emphasizing you could have been emphasizing they could have been emphasizing
Negation
Simple form
I could not emphasize you could not emphasize she could not emphasize we could not emphasize you could not emphasize they could not emphasize
V-ing form
I could not be emphasizing you could not be emphasizing she could not be emphasizing we could not be emphasizing you could not be emphasizing they could not be emphasizing
Perfect
I could not have emphasized you could not have emphasized she could not have emphasized we could not have emphasized you could not have emphasized they could not have emphasized
V-ing perfect
I could not have been emphasizing you could not have been emphasizing she could not have been emphasizing we could not have been emphasizing you could not have been emphasizing they could not have been emphasizing
Interrogative form
Simple form
could I emphasize? could you emphasize? could she emphasize? could we emphasize? could you emphasize? could they emphasize?
V-ing form
could I be emphasizing? could you be emphasizing? could she be emphasizing? could we be emphasizing? could you be emphasizing? could they be emphasizing?
Perfect
could I have emphasized? could you have emphasized? could she have emphasized? could we have emphasized? could you have emphasized? could they have emphasized?
V-ing perfect
could I have been emphasizing? could you have been emphasizing? could she have been emphasizing? could we have been emphasizing? could you have been emphasizing? could they have been emphasizing?
Interro-negative form
Simple form
could I not emphasize? could you not emphasize? could she not emphasize? could we not emphasize? could you not emphasize? could they not emphasize?
V-ing form
could I not be emphasizing? could you not be emphasizing? could she not be emphasizing? could we not be emphasizing? could you not be emphasizing? could they not be emphasizing?
Perfect
could I not have emphasized? could you not have emphasized? could she not have emphasized? could we not have emphasized? could you not have emphasized? could they not have emphasized?
V-ing perfect
could I not have been emphasizing? could you not have been emphasizing? could she not have been emphasizing? could we not have been emphasizing? could you not have been emphasizing? could they not have been emphasizing?