English verb conjugation
COULD STOOP

Regular verb: stoop - stooped - stooped

Affirmation

Simple form	V-ing form
I could stoop you could stoop he could stoop we could stoop you could stoop they could stoop	I could be stooping you could be stooping he could be stooping we could be stooping you could be stooping they could be stooping
Perfect	V-ing perfect
I could have stooped you could have stooped he could have stooped we could have stooped you could have stooped they could have stooped	I could have been stooping you could have been stooping he could have been stooping we could have been stooping you could have been stooping they could have been stooping

Negation

Simple form	V-ing form
I could not stoop you could not stoop he could not stoop we could not stoop you could not stoop they could not stoop	I could not be stooping you could not be stooping he could not be stooping we could not be stooping you could not be stooping they could not be stooping
Perfect	V-ing perfect
I could not have stooped you could not have stooped he could not have stooped we could not have stooped you could not have stooped they could not have stooped	I could not have been stooping you could not have been stooping he could not have been stooping we could not have been stooping you could not have been stooping they could not have been stooping

Interrogative form

Simple form	V-ing form
could I stoop? could you stoop? could he stoop? could we stoop? could you stoop? could they stoop?	could I be stooping? could you be stooping? could he be stooping? could we be stooping? could you be stooping? could they be stooping?
Perfect	V-ing perfect
could I have stooped? could you have stooped? could he have stooped? could we have stooped? could you have stooped? could they have stooped?	could I have been stooping? could you have been stooping? could he have been stooping? could we have been stooping? could you have been stooping? could they have been stooping?

Interro-negative form

Simple form	V-ing form
could I not stoop? could you not stoop? could he not stoop? could we not stoop? could you not stoop? could they not stoop?	could I not be stooping? could you not be stooping? could he not be stooping? could we not be stooping? could you not be stooping? could they not be stooping?
Perfect	V-ing perfect
could I not have stooped? could you not have stooped? could he not have stooped? could we not have stooped? could you not have stooped? could they not have stooped?	could I not have been stooping? could you not have been stooping? could he not have been stooping? could we not have been stooping? could you not have been stooping? could they not have been stooping?