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