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