English verb conjugation
COULD GUGGLE

Regular verb: guggle - guggled - guggled

Affirmation

Simple form	V-ing form
I could guggle you could guggle he could guggle we could guggle you could guggle they could guggle	I could be guggling you could be guggling he could be guggling we could be guggling you could be guggling they could be guggling
Perfect	V-ing perfect
I could have guggled you could have guggled he could have guggled we could have guggled you could have guggled they could have guggled	I could have been guggling you could have been guggling he could have been guggling we could have been guggling you could have been guggling they could have been guggling

Negation

Simple form	V-ing form
I couldn't guggle you couldn't guggle he couldn't guggle we couldn't guggle you couldn't guggle they couldn't guggle	I couldn't be guggling you couldn't be guggling he couldn't be guggling we couldn't be guggling you couldn't be guggling they couldn't be guggling
Perfect	V-ing perfect
I couldn't have guggled you couldn't have guggled he couldn't have guggled we couldn't have guggled you couldn't have guggled they couldn't have guggled	I couldn't have been guggling you couldn't have been guggling he couldn't have been guggling we couldn't have been guggling you couldn't have been guggling they couldn't have been guggling

Interrogative form

Simple form	V-ing form
could I guggle? could you guggle? could he guggle? could we guggle? could you guggle? could they guggle?	could I be guggling? could you be guggling? could he be guggling? could we be guggling? could you be guggling? could they be guggling?
Perfect	V-ing perfect
could I have guggled? could you have guggled? could he have guggled? could we have guggled? could you have guggled? could they have guggled?	could I have been guggling? could you have been guggling? could he have been guggling? could we have been guggling? could you have been guggling? could they have been guggling?

Interro-negative form

Simple form	V-ing form
couldn't I guggle? couldn't you guggle? couldn't he guggle? couldn't we guggle? couldn't you guggle? couldn't they guggle?	couldn't I be guggling? couldn't you be guggling? couldn't he be guggling? couldn't we be guggling? couldn't you be guggling? couldn't they be guggling?
Perfect	V-ing perfect
couldn't I have guggled? couldn't you have guggled? couldn't he have guggled? couldn't we have guggled? couldn't you have guggled? couldn't they have guggled?	couldn't I have been guggling? couldn't you have been guggling? couldn't he have been guggling? couldn't we have been guggling? couldn't you have been guggling? couldn't they have been guggling?