I could asperse you could asperse he could asperse we could asperse you could asperse they could asperse
V-ing form
I could be aspersing you could be aspersing he could be aspersing we could be aspersing you could be aspersing they could be aspersing
Perfect
I could have aspersed you could have aspersed he could have aspersed we could have aspersed you could have aspersed they could have aspersed
V-ing perfect
I could have been aspersing you could have been aspersing he could have been aspersing we could have been aspersing you could have been aspersing they could have been aspersing
Negation
Simple form
I couldn't asperse you couldn't asperse he couldn't asperse we couldn't asperse you couldn't asperse they couldn't asperse
V-ing form
I couldn't be aspersing you couldn't be aspersing he couldn't be aspersing we couldn't be aspersing you couldn't be aspersing they couldn't be aspersing
Perfect
I couldn't have aspersed you couldn't have aspersed he couldn't have aspersed we couldn't have aspersed you couldn't have aspersed they couldn't have aspersed
V-ing perfect
I couldn't have been aspersing you couldn't have been aspersing he couldn't have been aspersing we couldn't have been aspersing you couldn't have been aspersing they couldn't have been aspersing
Interrogative form
Simple form
could I asperse? could you asperse? could he asperse? could we asperse? could you asperse? could they asperse?
V-ing form
could I be aspersing? could you be aspersing? could he be aspersing? could we be aspersing? could you be aspersing? could they be aspersing?
Perfect
could I have aspersed? could you have aspersed? could he have aspersed? could we have aspersed? could you have aspersed? could they have aspersed?
V-ing perfect
could I have been aspersing? could you have been aspersing? could he have been aspersing? could we have been aspersing? could you have been aspersing? could they have been aspersing?
Interro-negative form
Simple form
couldn't I asperse? couldn't you asperse? couldn't he asperse? couldn't we asperse? couldn't you asperse? couldn't they asperse?
V-ing form
couldn't I be aspersing? couldn't you be aspersing? couldn't he be aspersing? couldn't we be aspersing? couldn't you be aspersing? couldn't they be aspersing?
Perfect
couldn't I have aspersed? couldn't you have aspersed? couldn't he have aspersed? couldn't we have aspersed? couldn't you have aspersed? couldn't they have aspersed?
V-ing perfect
couldn't I have been aspersing? couldn't you have been aspersing? couldn't he have been aspersing? couldn't we have been aspersing? couldn't you have been aspersing? couldn't they have been aspersing?