English verb conjugation
COULD DIAPER

Regular verb: diaper - diapered - diapered

Affirmation

Simple form	V-ing form
I could diaper you could diaper she could diaper we could diaper you could diaper they could diaper	I could be diapering you could be diapering she could be diapering we could be diapering you could be diapering they could be diapering
Perfect	V-ing perfect
I could have diapered you could have diapered she could have diapered we could have diapered you could have diapered they could have diapered	I could have been diapering you could have been diapering she could have been diapering we could have been diapering you could have been diapering they could have been diapering

Negation

Simple form	V-ing form
I couldn't diaper you couldn't diaper she couldn't diaper we couldn't diaper you couldn't diaper they couldn't diaper	I couldn't be diapering you couldn't be diapering she couldn't be diapering we couldn't be diapering you couldn't be diapering they couldn't be diapering
Perfect	V-ing perfect
I couldn't have diapered you couldn't have diapered she couldn't have diapered we couldn't have diapered you couldn't have diapered they couldn't have diapered	I couldn't have been diapering you couldn't have been diapering she couldn't have been diapering we couldn't have been diapering you couldn't have been diapering they couldn't have been diapering

Interrogative form

Simple form	V-ing form
could I diaper? could you diaper? could she diaper? could we diaper? could you diaper? could they diaper?	could I be diapering? could you be diapering? could she be diapering? could we be diapering? could you be diapering? could they be diapering?
Perfect	V-ing perfect
could I have diapered? could you have diapered? could she have diapered? could we have diapered? could you have diapered? could they have diapered?	could I have been diapering? could you have been diapering? could she have been diapering? could we have been diapering? could you have been diapering? could they have been diapering?

Interro-negative form

Simple form	V-ing form
couldn't I diaper? couldn't you diaper? couldn't she diaper? couldn't we diaper? couldn't you diaper? couldn't they diaper?	couldn't I be diapering? couldn't you be diapering? couldn't she be diapering? couldn't we be diapering? couldn't you be diapering? couldn't they be diapering?
Perfect	V-ing perfect
couldn't I have diapered? couldn't you have diapered? couldn't she have diapered? couldn't we have diapered? couldn't you have diapered? couldn't they have diapered?	couldn't I have been diapering? couldn't you have been diapering? couldn't she have been diapering? couldn't we have been diapering? couldn't you have been diapering? couldn't they have been diapering?