I can diaper you can diaper he can diaper we can diaper you can diaper they can diaper
V-ing form
I can be diapering you can be diapering he can be diapering we can be diapering you can be diapering they can be diapering
Perfect
I can have diapered you can have diapered he can have diapered we can have diapered you can have diapered they can have diapered
V-ing perfect
I can have been diapering you can have been diapering he can have been diapering we can have been diapering you can have been diapering they can have been diapering
Negation
Simple form
I can't diaper you can't diaper he can't diaper we can't diaper you can't diaper they can't diaper
V-ing form
I can't be diapering you can't be diapering he can't be diapering we can't be diapering you can't be diapering they can't be diapering
Perfect
I can't have diapered you can't have diapered he can't have diapered we can't have diapered you can't have diapered they can't have diapered
V-ing perfect
I can't have been diapering you can't have been diapering he can't have been diapering we can't have been diapering you can't have been diapering they can't have been diapering
Interrogative form
Simple form
can I diaper? can you diaper? can he diaper? can we diaper? can you diaper? can they diaper?
V-ing form
can I be diapering? can you be diapering? can he be diapering? can we be diapering? can you be diapering? can they be diapering?
Perfect
can I have diapered? can you have diapered? can he have diapered? can we have diapered? can you have diapered? can they have diapered?
V-ing perfect
can I have been diapering? can you have been diapering? can he have been diapering? can we have been diapering? can you have been diapering? can they have been diapering?
Interro-negative form
Simple form
can't I diaper? can't you diaper? can't he diaper? can't we diaper? can't you diaper? can't they diaper?
V-ing form
can't I be diapering? can't you be diapering? can't he be diapering? can't we be diapering? can't you be diapering? can't they be diapering?
Perfect
can't I have diapered? can't you have diapered? can't he have diapered? can't we have diapered? can't you have diapered? can't they have diapered?
V-ing perfect
can't I have been diapering? can't you have been diapering? can't he have been diapering? can't we have been diapering? can't you have been diapering? can't they have been diapering?