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