English verb conjugation
COULD SNAG

Regular verb: snag - snagged - snagged

Affirmation

Simple form	V-ing form
I could snag you could snag he could snag we could snag you could snag they could snag	I could be snagging you could be snagging he could be snagging we could be snagging you could be snagging they could be snagging
Perfect	V-ing perfect
I could have snagged you could have snagged he could have snagged we could have snagged you could have snagged they could have snagged	I could have been snagging you could have been snagging he could have been snagging we could have been snagging you could have been snagging they could have been snagging

Negation

Simple form	V-ing form
I couldn't snag you couldn't snag he couldn't snag we couldn't snag you couldn't snag they couldn't snag	I couldn't be snagging you couldn't be snagging he couldn't be snagging we couldn't be snagging you couldn't be snagging they couldn't be snagging
Perfect	V-ing perfect
I couldn't have snagged you couldn't have snagged he couldn't have snagged we couldn't have snagged you couldn't have snagged they couldn't have snagged	I couldn't have been snagging you couldn't have been snagging he couldn't have been snagging we couldn't have been snagging you couldn't have been snagging they couldn't have been snagging

Interrogative form

Simple form	V-ing form
could I snag? could you snag? could he snag? could we snag? could you snag? could they snag?	could I be snagging? could you be snagging? could he be snagging? could we be snagging? could you be snagging? could they be snagging?
Perfect	V-ing perfect
could I have snagged? could you have snagged? could he have snagged? could we have snagged? could you have snagged? could they have snagged?	could I have been snagging? could you have been snagging? could he have been snagging? could we have been snagging? could you have been snagging? could they have been snagging?

Interro-negative form

Simple form	V-ing form
couldn't I snag? couldn't you snag? couldn't he snag? couldn't we snag? couldn't you snag? couldn't they snag?	couldn't I be snagging? couldn't you be snagging? couldn't he be snagging? couldn't we be snagging? couldn't you be snagging? couldn't they be snagging?
Perfect	V-ing perfect
couldn't I have snagged? couldn't you have snagged? couldn't he have snagged? couldn't we have snagged? couldn't you have snagged? couldn't they have snagged?	couldn't I have been snagging? couldn't you have been snagging? couldn't he have been snagging? couldn't we have been snagging? couldn't you have been snagging? couldn't they have been snagging?