English verb conjugation
COULD WRIGGLE

Regular verb: wriggle - wriggled - wriggled

Affirmation

Simple form	V-ing form
I could wriggle you could wriggle he could wriggle we could wriggle you could wriggle they could wriggle	I could be wriggling you could be wriggling he could be wriggling we could be wriggling you could be wriggling they could be wriggling
Perfect	V-ing perfect
I could have wriggled you could have wriggled he could have wriggled we could have wriggled you could have wriggled they could have wriggled	I could have been wriggling you could have been wriggling he could have been wriggling we could have been wriggling you could have been wriggling they could have been wriggling

Negation

Simple form	V-ing form
I could not wriggle you could not wriggle he could not wriggle we could not wriggle you could not wriggle they could not wriggle	I could not be wriggling you could not be wriggling he could not be wriggling we could not be wriggling you could not be wriggling they could not be wriggling
Perfect	V-ing perfect
I could not have wriggled you could not have wriggled he could not have wriggled we could not have wriggled you could not have wriggled they could not have wriggled	I could not have been wriggling you could not have been wriggling he could not have been wriggling we could not have been wriggling you could not have been wriggling they could not have been wriggling

Interrogative form

Simple form	V-ing form
could I wriggle? could you wriggle? could he wriggle? could we wriggle? could you wriggle? could they wriggle?	could I be wriggling? could you be wriggling? could he be wriggling? could we be wriggling? could you be wriggling? could they be wriggling?
Perfect	V-ing perfect
could I have wriggled? could you have wriggled? could he have wriggled? could we have wriggled? could you have wriggled? could they have wriggled?	could I have been wriggling? could you have been wriggling? could he have been wriggling? could we have been wriggling? could you have been wriggling? could they have been wriggling?

Interro-negative form

Simple form	V-ing form
could I not wriggle? could you not wriggle? could he not wriggle? could we not wriggle? could you not wriggle? could they not wriggle?	could I not be wriggling? could you not be wriggling? could he not be wriggling? could we not be wriggling? could you not be wriggling? could they not be wriggling?
Perfect	V-ing perfect
could I not have wriggled? could you not have wriggled? could he not have wriggled? could we not have wriggled? could you not have wriggled? could they not have wriggled?	could I not have been wriggling? could you not have been wriggling? could he not have been wriggling? could we not have been wriggling? could you not have been wriggling? could they not have been wriggling?