I could condense you could condense he could condense we could condense you could condense they could condense
V-ing form
I could be condensing you could be condensing he could be condensing we could be condensing you could be condensing they could be condensing
Perfect
I could have condensed you could have condensed he could have condensed we could have condensed you could have condensed they could have condensed
V-ing perfect
I could have been condensing you could have been condensing he could have been condensing we could have been condensing you could have been condensing they could have been condensing
Negation
Simple form
I could not condense you could not condense he could not condense we could not condense you could not condense they could not condense
V-ing form
I could not be condensing you could not be condensing he could not be condensing we could not be condensing you could not be condensing they could not be condensing
Perfect
I could not have condensed you could not have condensed he could not have condensed we could not have condensed you could not have condensed they could not have condensed
V-ing perfect
I could not have been condensing you could not have been condensing he could not have been condensing we could not have been condensing you could not have been condensing they could not have been condensing
Interrogative form
Simple form
could I condense? could you condense? could he condense? could we condense? could you condense? could they condense?
V-ing form
could I be condensing? could you be condensing? could he be condensing? could we be condensing? could you be condensing? could they be condensing?
Perfect
could I have condensed? could you have condensed? could he have condensed? could we have condensed? could you have condensed? could they have condensed?
V-ing perfect
could I have been condensing? could you have been condensing? could he have been condensing? could we have been condensing? could you have been condensing? could they have been condensing?
Interro-negative form
Simple form
could I not condense? could you not condense? could he not condense? could we not condense? could you not condense? could they not condense?
V-ing form
could I not be condensing? could you not be condensing? could he not be condensing? could we not be condensing? could you not be condensing? could they not be condensing?
Perfect
could I not have condensed? could you not have condensed? could he not have condensed? could we not have condensed? could you not have condensed? could they not have condensed?
V-ing perfect
could I not have been condensing? could you not have been condensing? could he not have been condensing? could we not have been condensing? could you not have been condensing? could they not have been condensing?