English verb conjugation
COULD SKEW

Regular verb: skew - skewed - skewed

Affirmation

Simple form	V-ing form
I could skew you could skew he could skew we could skew you could skew they could skew	I could be skewing you could be skewing he could be skewing we could be skewing you could be skewing they could be skewing
Perfect	V-ing perfect
I could have skewed you could have skewed he could have skewed we could have skewed you could have skewed they could have skewed	I could have been skewing you could have been skewing he could have been skewing we could have been skewing you could have been skewing they could have been skewing

Negation

Simple form	V-ing form
I could not skew you could not skew he could not skew we could not skew you could not skew they could not skew	I could not be skewing you could not be skewing he could not be skewing we could not be skewing you could not be skewing they could not be skewing
Perfect	V-ing perfect
I could not have skewed you could not have skewed he could not have skewed we could not have skewed you could not have skewed they could not have skewed	I could not have been skewing you could not have been skewing he could not have been skewing we could not have been skewing you could not have been skewing they could not have been skewing

Interrogative form

Simple form	V-ing form
could I skew? could you skew? could he skew? could we skew? could you skew? could they skew?	could I be skewing? could you be skewing? could he be skewing? could we be skewing? could you be skewing? could they be skewing?
Perfect	V-ing perfect
could I have skewed? could you have skewed? could he have skewed? could we have skewed? could you have skewed? could they have skewed?	could I have been skewing? could you have been skewing? could he have been skewing? could we have been skewing? could you have been skewing? could they have been skewing?

Interro-negative form

Simple form	V-ing form
could I not skew? could you not skew? could he not skew? could we not skew? could you not skew? could they not skew?	could I not be skewing? could you not be skewing? could he not be skewing? could we not be skewing? could you not be skewing? could they not be skewing?
Perfect	V-ing perfect
could I not have skewed? could you not have skewed? could he not have skewed? could we not have skewed? could you not have skewed? could they not have skewed?	could I not have been skewing? could you not have been skewing? could he not have been skewing? could we not have been skewing? could you not have been skewing? could they not have been skewing?