English verb conjugation
COULD NURSE

Regular verb: nurse - nursed - nursed

Affirmation

Simple form	V-ing form
I could nurse you could nurse he could nurse we could nurse you could nurse they could nurse	I could be nursing you could be nursing he could be nursing we could be nursing you could be nursing they could be nursing
Perfect	V-ing perfect
I could have nursed you could have nursed he could have nursed we could have nursed you could have nursed they could have nursed	I could have been nursing you could have been nursing he could have been nursing we could have been nursing you could have been nursing they could have been nursing

Negation

Simple form	V-ing form
I couldn't nurse you couldn't nurse he couldn't nurse we couldn't nurse you couldn't nurse they couldn't nurse	I couldn't be nursing you couldn't be nursing he couldn't be nursing we couldn't be nursing you couldn't be nursing they couldn't be nursing
Perfect	V-ing perfect
I couldn't have nursed you couldn't have nursed he couldn't have nursed we couldn't have nursed you couldn't have nursed they couldn't have nursed	I couldn't have been nursing you couldn't have been nursing he couldn't have been nursing we couldn't have been nursing you couldn't have been nursing they couldn't have been nursing

Interrogative form

Simple form	V-ing form
could I nurse? could you nurse? could he nurse? could we nurse? could you nurse? could they nurse?	could I be nursing? could you be nursing? could he be nursing? could we be nursing? could you be nursing? could they be nursing?
Perfect	V-ing perfect
could I have nursed? could you have nursed? could he have nursed? could we have nursed? could you have nursed? could they have nursed?	could I have been nursing? could you have been nursing? could he have been nursing? could we have been nursing? could you have been nursing? could they have been nursing?

Interro-negative form

Simple form	V-ing form
couldn't I nurse? couldn't you nurse? couldn't he nurse? couldn't we nurse? couldn't you nurse? couldn't they nurse?	couldn't I be nursing? couldn't you be nursing? couldn't he be nursing? couldn't we be nursing? couldn't you be nursing? couldn't they be nursing?
Perfect	V-ing perfect
couldn't I have nursed? couldn't you have nursed? couldn't he have nursed? couldn't we have nursed? couldn't you have nursed? couldn't they have nursed?	couldn't I have been nursing? couldn't you have been nursing? couldn't he have been nursing? couldn't we have been nursing? couldn't you have been nursing? couldn't they have been nursing?