English verb conjugation
COULD SLEW

Regular verb: slew - slewed - slewed

Affirmation

Simple form	V-ing form
I could slew you could slew he could slew we could slew you could slew they could slew	I could be slewing you could be slewing he could be slewing we could be slewing you could be slewing they could be slewing
Perfect	V-ing perfect
I could have slewed you could have slewed he could have slewed we could have slewed you could have slewed they could have slewed	I could have been slewing you could have been slewing he could have been slewing we could have been slewing you could have been slewing they could have been slewing

Negation

Simple form	V-ing form
I could not slew you could not slew he could not slew we could not slew you could not slew they could not slew	I could not be slewing you could not be slewing he could not be slewing we could not be slewing you could not be slewing they could not be slewing
Perfect	V-ing perfect
I could not have slewed you could not have slewed he could not have slewed we could not have slewed you could not have slewed they could not have slewed	I could not have been slewing you could not have been slewing he could not have been slewing we could not have been slewing you could not have been slewing they could not have been slewing

Interrogative form

Simple form	V-ing form
could I slew? could you slew? could he slew? could we slew? could you slew? could they slew?	could I be slewing? could you be slewing? could he be slewing? could we be slewing? could you be slewing? could they be slewing?
Perfect	V-ing perfect
could I have slewed? could you have slewed? could he have slewed? could we have slewed? could you have slewed? could they have slewed?	could I have been slewing? could you have been slewing? could he have been slewing? could we have been slewing? could you have been slewing? could they have been slewing?

Interro-negative form

Simple form	V-ing form
could I not slew? could you not slew? could he not slew? could we not slew? could you not slew? could they not slew?	could I not be slewing? could you not be slewing? could he not be slewing? could we not be slewing? could you not be slewing? could they not be slewing?
Perfect	V-ing perfect
could I not have slewed? could you not have slewed? could he not have slewed? could we not have slewed? could you not have slewed? could they not have slewed?	could I not have been slewing? could you not have been slewing? could he not have been slewing? could we not have been slewing? could you not have been slewing? could they not have been slewing?