I could disperse you could disperse she could disperse we could disperse you could disperse they could disperse
V-ing form
I could be dispersing you could be dispersing she could be dispersing we could be dispersing you could be dispersing they could be dispersing
Perfect
I could have dispersed you could have dispersed she could have dispersed we could have dispersed you could have dispersed they could have dispersed
V-ing perfect
I could have been dispersing you could have been dispersing she could have been dispersing we could have been dispersing you could have been dispersing they could have been dispersing
Negation
Simple form
I could not disperse you could not disperse she could not disperse we could not disperse you could not disperse they could not disperse
V-ing form
I could not be dispersing you could not be dispersing she could not be dispersing we could not be dispersing you could not be dispersing they could not be dispersing
Perfect
I could not have dispersed you could not have dispersed she could not have dispersed we could not have dispersed you could not have dispersed they could not have dispersed
V-ing perfect
I could not have been dispersing you could not have been dispersing she could not have been dispersing we could not have been dispersing you could not have been dispersing they could not have been dispersing
Interrogative form
Simple form
could I disperse? could you disperse? could she disperse? could we disperse? could you disperse? could they disperse?
V-ing form
could I be dispersing? could you be dispersing? could she be dispersing? could we be dispersing? could you be dispersing? could they be dispersing?
Perfect
could I have dispersed? could you have dispersed? could she have dispersed? could we have dispersed? could you have dispersed? could they have dispersed?
V-ing perfect
could I have been dispersing? could you have been dispersing? could she have been dispersing? could we have been dispersing? could you have been dispersing? could they have been dispersing?
Interro-negative form
Simple form
could I not disperse? could you not disperse? could she not disperse? could we not disperse? could you not disperse? could they not disperse?
V-ing form
could I not be dispersing? could you not be dispersing? could she not be dispersing? could we not be dispersing? could you not be dispersing? could they not be dispersing?
Perfect
could I not have dispersed? could you not have dispersed? could she not have dispersed? could we not have dispersed? could you not have dispersed? could they not have dispersed?
V-ing perfect
could I not have been dispersing? could you not have been dispersing? could she not have been dispersing? could we not have been dispersing? could you not have been dispersing? could they not have been dispersing?