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 couldn't jag you couldn't jag he couldn't jag we couldn't jag you couldn't jag they couldn't jag	I couldn't be jagging you couldn't be jagging he couldn't be jagging we couldn't be jagging you couldn't be jagging they couldn't be jagging
Perfect	V-ing perfect
I couldn't have jagged you couldn't have jagged he couldn't have jagged we couldn't have jagged you couldn't have jagged they couldn't have jagged	I couldn't have been jagging you couldn't have been jagging he couldn't have been jagging we couldn't have been jagging you couldn't have been jagging they couldn't 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
couldn't I jag? couldn't you jag? couldn't he jag? couldn't we jag? couldn't you jag? couldn't they jag?	couldn't I be jagging? couldn't you be jagging? couldn't he be jagging? couldn't we be jagging? couldn't you be jagging? couldn't they be jagging?
Perfect	V-ing perfect
couldn't I have jagged? couldn't you have jagged? couldn't he have jagged? couldn't we have jagged? couldn't you have jagged? couldn't they have jagged?	couldn't I have been jagging? couldn't you have been jagging? couldn't he have been jagging? couldn't we have been jagging? couldn't you have been jagging? couldn't they have been jagging?