English verb conjugation
COULD MANURE

Regular verb: manure - manured - manured

Affirmation

Simple form	V-ing form
I could manure you could manure he could manure we could manure you could manure they could manure	I could be manuring you could be manuring he could be manuring we could be manuring you could be manuring they could be manuring
Perfect	V-ing perfect
I could have manured you could have manured he could have manured we could have manured you could have manured they could have manured	I could have been manuring you could have been manuring he could have been manuring we could have been manuring you could have been manuring they could have been manuring

Negation

Simple form	V-ing form
I could not manure you could not manure he could not manure we could not manure you could not manure they could not manure	I could not be manuring you could not be manuring he could not be manuring we could not be manuring you could not be manuring they could not be manuring
Perfect	V-ing perfect
I could not have manured you could not have manured he could not have manured we could not have manured you could not have manured they could not have manured	I could not have been manuring you could not have been manuring he could not have been manuring we could not have been manuring you could not have been manuring they could not have been manuring

Interrogative form

Simple form	V-ing form
could I manure? could you manure? could he manure? could we manure? could you manure? could they manure?	could I be manuring? could you be manuring? could he be manuring? could we be manuring? could you be manuring? could they be manuring?
Perfect	V-ing perfect
could I have manured? could you have manured? could he have manured? could we have manured? could you have manured? could they have manured?	could I have been manuring? could you have been manuring? could he have been manuring? could we have been manuring? could you have been manuring? could they have been manuring?

Interro-negative form

Simple form	V-ing form
could I not manure? could you not manure? could he not manure? could we not manure? could you not manure? could they not manure?	could I not be manuring? could you not be manuring? could he not be manuring? could we not be manuring? could you not be manuring? could they not be manuring?
Perfect	V-ing perfect
could I not have manured? could you not have manured? could he not have manured? could we not have manured? could you not have manured? could they not have manured?	could I not have been manuring? could you not have been manuring? could he not have been manuring? could we not have been manuring? could you not have been manuring? could they not have been manuring?