I could intersperse you could intersperse she could intersperse we could intersperse you could intersperse they could intersperse
V-ing form
I could be interspersing you could be interspersing she could be interspersing we could be interspersing you could be interspersing they could be interspersing
Perfect
I could have interspersed you could have interspersed she could have interspersed we could have interspersed you could have interspersed they could have interspersed
V-ing perfect
I could have been interspersing you could have been interspersing she could have been interspersing we could have been interspersing you could have been interspersing they could have been interspersing
Negation
Simple form
I could not intersperse you could not intersperse she could not intersperse we could not intersperse you could not intersperse they could not intersperse
V-ing form
I could not be interspersing you could not be interspersing she could not be interspersing we could not be interspersing you could not be interspersing they could not be interspersing
Perfect
I could not have interspersed you could not have interspersed she could not have interspersed we could not have interspersed you could not have interspersed they could not have interspersed
V-ing perfect
I could not have been interspersing you could not have been interspersing she could not have been interspersing we could not have been interspersing you could not have been interspersing they could not have been interspersing
Interrogative form
Simple form
could I intersperse? could you intersperse? could she intersperse? could we intersperse? could you intersperse? could they intersperse?
V-ing form
could I be interspersing? could you be interspersing? could she be interspersing? could we be interspersing? could you be interspersing? could they be interspersing?
Perfect
could I have interspersed? could you have interspersed? could she have interspersed? could we have interspersed? could you have interspersed? could they have interspersed?
V-ing perfect
could I have been interspersing? could you have been interspersing? could she have been interspersing? could we have been interspersing? could you have been interspersing? could they have been interspersing?
Interro-negative form
Simple form
could I not intersperse? could you not intersperse? could she not intersperse? could we not intersperse? could you not intersperse? could they not intersperse?
V-ing form
could I not be interspersing? could you not be interspersing? could she not be interspersing? could we not be interspersing? could you not be interspersing? could they not be interspersing?
Perfect
could I not have interspersed? could you not have interspersed? could she not have interspersed? could we not have interspersed? could you not have interspersed? could they not have interspersed?
V-ing perfect
could I not have been interspersing? could you not have been interspersing? could she not have been interspersing? could we not have been interspersing? could you not have been interspersing? could they not have been interspersing?