English verb conjugation
COULD JAG

Regular verb: jag - jagged - jagged

Affirmation

Simple form	V-ing form
I could jag you could jag he could jag we could jag you could jag they could jag	I could be jagging you could be jagging he could be jagging we could be jagging you could be jagging they could be jagging
Perfect	V-ing perfect
I could have jagged you could have jagged he could have jagged we could have jagged you could have jagged they could have jagged	I could have been jagging you could have been jagging he could have been jagging we could have been jagging you could have been jagging they could have been jagging

Negation

Simple form	V-ing form
I could not jag you could not jag he could not jag we could not jag you could not jag they could not jag	I could not be jagging you could not be jagging he could not be jagging we could not be jagging you could not be jagging they could not be jagging
Perfect	V-ing perfect
I could not have jagged you could not have jagged he could not have jagged we could not have jagged you could not have jagged they could not have jagged	I could not have been jagging you could not have been jagging he could not have been jagging we could not have been jagging you could not have been jagging they could not have been jagging

Interrogative form

Simple form	V-ing form
could I jag? could you jag? could he jag? could we jag? could you jag? could they jag?	could I be jagging? could you be jagging? could he be jagging? could we be jagging? could you be jagging? could they be jagging?
Perfect	V-ing perfect
could I have jagged? could you have jagged? could he have jagged? could we have jagged? could you have jagged? could they have jagged?	could I have been jagging? could you have been jagging? could he have been jagging? could we have been jagging? could you have been jagging? could they have been jagging?

Interro-negative form

Simple form	V-ing form
could I not jag? could you not jag? could he not jag? could we not jag? could you not jag? could they not jag?	could I not be jagging? could you not be jagging? could he not be jagging? could we not be jagging? could you not be jagging? could they not be jagging?
Perfect	V-ing perfect
could I not have jagged? could you not have jagged? could he not have jagged? could we not have jagged? could you not have jagged? could they not have jagged?	could I not have been jagging? could you not have been jagging? could he not have been jagging? could we not have been jagging? could you not have been jagging? could they not have been jagging?