English verb conjugation
COULD STEW

Regular verb: stew - stewed - stewed

Affirmation

Simple form	V-ing form
I could stew you could stew he could stew we could stew you could stew they could stew	I could be stewing you could be stewing he could be stewing we could be stewing you could be stewing they could be stewing
Perfect	V-ing perfect
I could have stewed you could have stewed he could have stewed we could have stewed you could have stewed they could have stewed	I could have been stewing you could have been stewing he could have been stewing we could have been stewing you could have been stewing they could have been stewing

Negation

Simple form	V-ing form
I could not stew you could not stew he could not stew we could not stew you could not stew they could not stew	I could not be stewing you could not be stewing he could not be stewing we could not be stewing you could not be stewing they could not be stewing
Perfect	V-ing perfect
I could not have stewed you could not have stewed he could not have stewed we could not have stewed you could not have stewed they could not have stewed	I could not have been stewing you could not have been stewing he could not have been stewing we could not have been stewing you could not have been stewing they could not have been stewing

Interrogative form

Simple form	V-ing form
could I stew? could you stew? could he stew? could we stew? could you stew? could they stew?	could I be stewing? could you be stewing? could he be stewing? could we be stewing? could you be stewing? could they be stewing?
Perfect	V-ing perfect
could I have stewed? could you have stewed? could he have stewed? could we have stewed? could you have stewed? could they have stewed?	could I have been stewing? could you have been stewing? could he have been stewing? could we have been stewing? could you have been stewing? could they have been stewing?

Interro-negative form

Simple form	V-ing form
could I not stew? could you not stew? could he not stew? could we not stew? could you not stew? could they not stew?	could I not be stewing? could you not be stewing? could he not be stewing? could we not be stewing? could you not be stewing? could they not be stewing?
Perfect	V-ing perfect
could I not have stewed? could you not have stewed? could he not have stewed? could we not have stewed? could you not have stewed? could they not have stewed?	could I not have been stewing? could you not have been stewing? could he not have been stewing? could we not have been stewing? could you not have been stewing? could they not have been stewing?