English verb conjugation
COULD HOOVER

Regular verb: hoover - hoovered - hoovered

Affirmation

Simple form	V-ing form
I could hoover you could hoover he could hoover we could hoover you could hoover they could hoover	I could be hoovering you could be hoovering he could be hoovering we could be hoovering you could be hoovering they could be hoovering
Perfect	V-ing perfect
I could have hoovered you could have hoovered he could have hoovered we could have hoovered you could have hoovered they could have hoovered	I could have been hoovering you could have been hoovering he could have been hoovering we could have been hoovering you could have been hoovering they could have been hoovering

Negation

Simple form	V-ing form
I could not hoover you could not hoover he could not hoover we could not hoover you could not hoover they could not hoover	I could not be hoovering you could not be hoovering he could not be hoovering we could not be hoovering you could not be hoovering they could not be hoovering
Perfect	V-ing perfect
I could not have hoovered you could not have hoovered he could not have hoovered we could not have hoovered you could not have hoovered they could not have hoovered	I could not have been hoovering you could not have been hoovering he could not have been hoovering we could not have been hoovering you could not have been hoovering they could not have been hoovering

Interrogative form

Simple form	V-ing form
could I hoover? could you hoover? could he hoover? could we hoover? could you hoover? could they hoover?	could I be hoovering? could you be hoovering? could he be hoovering? could we be hoovering? could you be hoovering? could they be hoovering?
Perfect	V-ing perfect
could I have hoovered? could you have hoovered? could he have hoovered? could we have hoovered? could you have hoovered? could they have hoovered?	could I have been hoovering? could you have been hoovering? could he have been hoovering? could we have been hoovering? could you have been hoovering? could they have been hoovering?

Interro-negative form

Simple form	V-ing form
could I not hoover? could you not hoover? could he not hoover? could we not hoover? could you not hoover? could they not hoover?	could I not be hoovering? could you not be hoovering? could he not be hoovering? could we not be hoovering? could you not be hoovering? could they not be hoovering?
Perfect	V-ing perfect
could I not have hoovered? could you not have hoovered? could he not have hoovered? could we not have hoovered? could you not have hoovered? could they not have hoovered?	could I not have been hoovering? could you not have been hoovering? could he not have been hoovering? could we not have been hoovering? could you not have been hoovering? could they not have been hoovering?