English verb conjugation
COULD GURGLE

Regular verb: gurgle - gurgled - gurgled

Affirmation

Simple form	V-ing form
I could gurgle you could gurgle he could gurgle we could gurgle you could gurgle they could gurgle	I could be gurgling you could be gurgling he could be gurgling we could be gurgling you could be gurgling they could be gurgling
Perfect	V-ing perfect
I could have gurgled you could have gurgled he could have gurgled we could have gurgled you could have gurgled they could have gurgled	I could have been gurgling you could have been gurgling he could have been gurgling we could have been gurgling you could have been gurgling they could have been gurgling

Negation

Simple form	V-ing form
I could not gurgle you could not gurgle he could not gurgle we could not gurgle you could not gurgle they could not gurgle	I could not be gurgling you could not be gurgling he could not be gurgling we could not be gurgling you could not be gurgling they could not be gurgling
Perfect	V-ing perfect
I could not have gurgled you could not have gurgled he could not have gurgled we could not have gurgled you could not have gurgled they could not have gurgled	I could not have been gurgling you could not have been gurgling he could not have been gurgling we could not have been gurgling you could not have been gurgling they could not have been gurgling

Interrogative form

Simple form	V-ing form
could I gurgle? could you gurgle? could he gurgle? could we gurgle? could you gurgle? could they gurgle?	could I be gurgling? could you be gurgling? could he be gurgling? could we be gurgling? could you be gurgling? could they be gurgling?
Perfect	V-ing perfect
could I have gurgled? could you have gurgled? could he have gurgled? could we have gurgled? could you have gurgled? could they have gurgled?	could I have been gurgling? could you have been gurgling? could he have been gurgling? could we have been gurgling? could you have been gurgling? could they have been gurgling?

Interro-negative form

Simple form	V-ing form
could I not gurgle? could you not gurgle? could he not gurgle? could we not gurgle? could you not gurgle? could they not gurgle?	could I not be gurgling? could you not be gurgling? could he not be gurgling? could we not be gurgling? could you not be gurgling? could they not be gurgling?
Perfect	V-ing perfect
could I not have gurgled? could you not have gurgled? could he not have gurgled? could we not have gurgled? could you not have gurgled? could they not have gurgled?	could I not have been gurgling? could you not have been gurgling? could he not have been gurgling? could we not have been gurgling? could you not have been gurgling? could they not have been gurgling?