I could incense you could incense she could incense we could incense you could incense they could incense
V-ing form
I could be incensing you could be incensing she could be incensing we could be incensing you could be incensing they could be incensing
Perfect
I could have incensed you could have incensed she 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 she 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 she 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 she 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 she 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 she 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 she incense? could we incense? could you incense? could they incense?
V-ing form
could I be incensing? could you be incensing? could she be incensing? could we be incensing? could you be incensing? could they be incensing?
Perfect
could I have incensed? could you have incensed? could she 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 she 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 she 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 she 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 she 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 she have been incensing? couldn't we have been incensing? couldn't you have been incensing? couldn't they have been incensing?