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 couldn't hoover you couldn't hoover he couldn't hoover we couldn't hoover you couldn't hoover they couldn't hoover	I couldn't be hoovering you couldn't be hoovering he couldn't be hoovering we couldn't be hoovering you couldn't be hoovering they couldn't be hoovering
Perfect	V-ing perfect
I couldn't have hoovered you couldn't have hoovered he couldn't have hoovered we couldn't have hoovered you couldn't have hoovered they couldn't have hoovered	I couldn't have been hoovering you couldn't have been hoovering he couldn't have been hoovering we couldn't have been hoovering you couldn't have been hoovering they couldn't 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
couldn't I hoover? couldn't you hoover? couldn't he hoover? couldn't we hoover? couldn't you hoover? couldn't they hoover?	couldn't I be hoovering? couldn't you be hoovering? couldn't he be hoovering? couldn't we be hoovering? couldn't you be hoovering? couldn't they be hoovering?
Perfect	V-ing perfect
couldn't I have hoovered? couldn't you have hoovered? couldn't he have hoovered? couldn't we have hoovered? couldn't you have hoovered? couldn't they have hoovered?	couldn't I have been hoovering? couldn't you have been hoovering? couldn't he have been hoovering? couldn't we have been hoovering? couldn't you have been hoovering? couldn't they have been hoovering?