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