English verb conjugation
COULD QUICKSILVER

Regular verb: quicksilver - quicksilvered - quicksilvered

Affirmation

Simple form	V-ing form
I could quicksilver you could quicksilver he could quicksilver we could quicksilver you could quicksilver they could quicksilver	I could be quicksilvering you could be quicksilvering he could be quicksilvering we could be quicksilvering you could be quicksilvering they could be quicksilvering
Perfect	V-ing perfect
I could have quicksilvered you could have quicksilvered he could have quicksilvered we could have quicksilvered you could have quicksilvered they could have quicksilvered	I could have been quicksilvering you could have been quicksilvering he could have been quicksilvering we could have been quicksilvering you could have been quicksilvering they could have been quicksilvering

Negation

Simple form	V-ing form
I couldn't quicksilver you couldn't quicksilver he couldn't quicksilver we couldn't quicksilver you couldn't quicksilver they couldn't quicksilver	I couldn't be quicksilvering you couldn't be quicksilvering he couldn't be quicksilvering we couldn't be quicksilvering you couldn't be quicksilvering they couldn't be quicksilvering
Perfect	V-ing perfect
I couldn't have quicksilvered you couldn't have quicksilvered he couldn't have quicksilvered we couldn't have quicksilvered you couldn't have quicksilvered they couldn't have quicksilvered	I couldn't have been quicksilvering you couldn't have been quicksilvering he couldn't have been quicksilvering we couldn't have been quicksilvering you couldn't have been quicksilvering they couldn't have been quicksilvering

Interrogative form

Simple form	V-ing form
could I quicksilver? could you quicksilver? could he quicksilver? could we quicksilver? could you quicksilver? could they quicksilver?	could I be quicksilvering? could you be quicksilvering? could he be quicksilvering? could we be quicksilvering? could you be quicksilvering? could they be quicksilvering?
Perfect	V-ing perfect
could I have quicksilvered? could you have quicksilvered? could he have quicksilvered? could we have quicksilvered? could you have quicksilvered? could they have quicksilvered?	could I have been quicksilvering? could you have been quicksilvering? could he have been quicksilvering? could we have been quicksilvering? could you have been quicksilvering? could they have been quicksilvering?

Interro-negative form

Simple form	V-ing form
couldn't I quicksilver? couldn't you quicksilver? couldn't he quicksilver? couldn't we quicksilver? couldn't you quicksilver? couldn't they quicksilver?	couldn't I be quicksilvering? couldn't you be quicksilvering? couldn't he be quicksilvering? couldn't we be quicksilvering? couldn't you be quicksilvering? couldn't they be quicksilvering?
Perfect	V-ing perfect
couldn't I have quicksilvered? couldn't you have quicksilvered? couldn't he have quicksilvered? couldn't we have quicksilvered? couldn't you have quicksilvered? couldn't they have quicksilvered?	couldn't I have been quicksilvering? couldn't you have been quicksilvering? couldn't he have been quicksilvering? couldn't we have been quicksilvering? couldn't you have been quicksilvering? couldn't they have been quicksilvering?