I can pepper you can pepper he can pepper we can pepper you can pepper they can pepper
V-ing form
I can be peppering you can be peppering he can be peppering we can be peppering you can be peppering they can be peppering
Perfect
I can have peppered you can have peppered he 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 he 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 he 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 he 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 he 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 he 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 he pepper? can we pepper? can you pepper? can they pepper?
V-ing form
can I be peppering? can you be peppering? can he be peppering? can we be peppering? can you be peppering? can they be peppering?
Perfect
can I have peppered? can you have peppered? can he 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 he 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 he 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 he 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 he 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 he have been peppering? can't we have been peppering? can't you have been peppering? can't they have been peppering?