English verb conjugation
COULD JUG

Regular verb: jug - jugged - jugged

Affirmation

Simple form	V-ing form
I could jug you could jug he could jug we could jug you could jug they could jug	I could be jugging you could be jugging he could be jugging we could be jugging you could be jugging they could be jugging
Perfect	V-ing perfect
I could have jugged you could have jugged he could have jugged we could have jugged you could have jugged they could have jugged	I could have been jugging you could have been jugging he could have been jugging we could have been jugging you could have been jugging they could have been jugging

Negation

Simple form	V-ing form
I couldn't jug you couldn't jug he couldn't jug we couldn't jug you couldn't jug they couldn't jug	I couldn't be jugging you couldn't be jugging he couldn't be jugging we couldn't be jugging you couldn't be jugging they couldn't be jugging
Perfect	V-ing perfect
I couldn't have jugged you couldn't have jugged he couldn't have jugged we couldn't have jugged you couldn't have jugged they couldn't have jugged	I couldn't have been jugging you couldn't have been jugging he couldn't have been jugging we couldn't have been jugging you couldn't have been jugging they couldn't have been jugging

Interrogative form

Simple form	V-ing form
could I jug? could you jug? could he jug? could we jug? could you jug? could they jug?	could I be jugging? could you be jugging? could he be jugging? could we be jugging? could you be jugging? could they be jugging?
Perfect	V-ing perfect
could I have jugged? could you have jugged? could he have jugged? could we have jugged? could you have jugged? could they have jugged?	could I have been jugging? could you have been jugging? could he have been jugging? could we have been jugging? could you have been jugging? could they have been jugging?

Interro-negative form

Simple form	V-ing form
couldn't I jug? couldn't you jug? couldn't he jug? couldn't we jug? couldn't you jug? couldn't they jug?	couldn't I be jugging? couldn't you be jugging? couldn't he be jugging? couldn't we be jugging? couldn't you be jugging? couldn't they be jugging?
Perfect	V-ing perfect
couldn't I have jugged? couldn't you have jugged? couldn't he have jugged? couldn't we have jugged? couldn't you have jugged? couldn't they have jugged?	couldn't I have been jugging? couldn't you have been jugging? couldn't he have been jugging? couldn't we have been jugging? couldn't you have been jugging? couldn't they have been jugging?