English verb conjugation
COULD SKITTER

Regular verb: skitter - skittered - skittered

Affirmation

Simple form	V-ing form
I could skitter you could skitter he could skitter we could skitter you could skitter they could skitter	I could be skittering you could be skittering he could be skittering we could be skittering you could be skittering they could be skittering
Perfect	V-ing perfect
I could have skittered you could have skittered he could have skittered we could have skittered you could have skittered they could have skittered	I could have been skittering you could have been skittering he could have been skittering we could have been skittering you could have been skittering they could have been skittering

Negation

Simple form	V-ing form
I could not skitter you could not skitter he could not skitter we could not skitter you could not skitter they could not skitter	I could not be skittering you could not be skittering he could not be skittering we could not be skittering you could not be skittering they could not be skittering
Perfect	V-ing perfect
I could not have skittered you could not have skittered he could not have skittered we could not have skittered you could not have skittered they could not have skittered	I could not have been skittering you could not have been skittering he could not have been skittering we could not have been skittering you could not have been skittering they could not have been skittering

Interrogative form

Simple form	V-ing form
could I skitter? could you skitter? could he skitter? could we skitter? could you skitter? could they skitter?	could I be skittering? could you be skittering? could he be skittering? could we be skittering? could you be skittering? could they be skittering?
Perfect	V-ing perfect
could I have skittered? could you have skittered? could he have skittered? could we have skittered? could you have skittered? could they have skittered?	could I have been skittering? could you have been skittering? could he have been skittering? could we have been skittering? could you have been skittering? could they have been skittering?

Interro-negative form

Simple form	V-ing form
could I not skitter? could you not skitter? could he not skitter? could we not skitter? could you not skitter? could they not skitter?	could I not be skittering? could you not be skittering? could he not be skittering? could we not be skittering? could you not be skittering? could they not be skittering?
Perfect	V-ing perfect
could I not have skittered? could you not have skittered? could he not have skittered? could we not have skittered? could you not have skittered? could they not have skittered?	could I not have been skittering? could you not have been skittering? could he not have been skittering? could we not have been skittering? could you not have been skittering? could they not have been skittering?