English verb conjugation
COULD GUTTER

Regular verb: gutter - guttered - guttered

Affirmation

Simple form	V-ing form
I could gutter you could gutter he could gutter we could gutter you could gutter they could gutter	I could be guttering you could be guttering he could be guttering we could be guttering you could be guttering they could be guttering
Perfect	V-ing perfect
I could have guttered you could have guttered he could have guttered we could have guttered you could have guttered they could have guttered	I could have been guttering you could have been guttering he could have been guttering we could have been guttering you could have been guttering they could have been guttering

Negation

Simple form	V-ing form
I could not gutter you could not gutter he could not gutter we could not gutter you could not gutter they could not gutter	I could not be guttering you could not be guttering he could not be guttering we could not be guttering you could not be guttering they could not be guttering
Perfect	V-ing perfect
I could not have guttered you could not have guttered he could not have guttered we could not have guttered you could not have guttered they could not have guttered	I could not have been guttering you could not have been guttering he could not have been guttering we could not have been guttering you could not have been guttering they could not have been guttering

Interrogative form

Simple form	V-ing form
could I gutter? could you gutter? could he gutter? could we gutter? could you gutter? could they gutter?	could I be guttering? could you be guttering? could he be guttering? could we be guttering? could you be guttering? could they be guttering?
Perfect	V-ing perfect
could I have guttered? could you have guttered? could he have guttered? could we have guttered? could you have guttered? could they have guttered?	could I have been guttering? could you have been guttering? could he have been guttering? could we have been guttering? could you have been guttering? could they have been guttering?

Interro-negative form

Simple form	V-ing form
could I not gutter? could you not gutter? could he not gutter? could we not gutter? could you not gutter? could they not gutter?	could I not be guttering? could you not be guttering? could he not be guttering? could we not be guttering? could you not be guttering? could they not be guttering?
Perfect	V-ing perfect
could I not have guttered? could you not have guttered? could he not have guttered? could we not have guttered? could you not have guttered? could they not have guttered?	could I not have been guttering? could you not have been guttering? could he not have been guttering? could we not have been guttering? could you not have been guttering? could they not have been guttering?