English verb conjugation
COULD LINGER

Regular verb: linger - lingered - lingered

Affirmation

Simple form	V-ing form
I could linger you could linger he could linger we could linger you could linger they could linger	I could be lingering you could be lingering he could be lingering we could be lingering you could be lingering they could be lingering
Perfect	V-ing perfect
I could have lingered you could have lingered he could have lingered we could have lingered you could have lingered they could have lingered	I could have been lingering you could have been lingering he could have been lingering we could have been lingering you could have been lingering they could have been lingering

Negation

Simple form	V-ing form
I couldn't linger you couldn't linger he couldn't linger we couldn't linger you couldn't linger they couldn't linger	I couldn't be lingering you couldn't be lingering he couldn't be lingering we couldn't be lingering you couldn't be lingering they couldn't be lingering
Perfect	V-ing perfect
I couldn't have lingered you couldn't have lingered he couldn't have lingered we couldn't have lingered you couldn't have lingered they couldn't have lingered	I couldn't have been lingering you couldn't have been lingering he couldn't have been lingering we couldn't have been lingering you couldn't have been lingering they couldn't have been lingering

Interrogative form

Simple form	V-ing form
could I linger? could you linger? could he linger? could we linger? could you linger? could they linger?	could I be lingering? could you be lingering? could he be lingering? could we be lingering? could you be lingering? could they be lingering?
Perfect	V-ing perfect
could I have lingered? could you have lingered? could he have lingered? could we have lingered? could you have lingered? could they have lingered?	could I have been lingering? could you have been lingering? could he have been lingering? could we have been lingering? could you have been lingering? could they have been lingering?

Interro-negative form

Simple form	V-ing form
couldn't I linger? couldn't you linger? couldn't he linger? couldn't we linger? couldn't you linger? couldn't they linger?	couldn't I be lingering? couldn't you be lingering? couldn't he be lingering? couldn't we be lingering? couldn't you be lingering? couldn't they be lingering?
Perfect	V-ing perfect
couldn't I have lingered? couldn't you have lingered? couldn't he have lingered? couldn't we have lingered? couldn't you have lingered? couldn't they have lingered?	couldn't I have been lingering? couldn't you have been lingering? couldn't he have been lingering? couldn't we have been lingering? couldn't you have been lingering? couldn't they have been lingering?