English verb conjugation
COULD OVERSPILL

Regular verb: overspill - overspilled - overspilled

Affirmation

Simple form	V-ing form
I could overspill you could overspill he could overspill we could overspill you could overspill they could overspill	I could be overspilling you could be overspilling he could be overspilling we could be overspilling you could be overspilling they could be overspilling
Perfect	V-ing perfect
I could have overspilled you could have overspilled he could have overspilled we could have overspilled you could have overspilled they could have overspilled	I could have been overspilling you could have been overspilling he could have been overspilling we could have been overspilling you could have been overspilling they could have been overspilling

Negation

Simple form	V-ing form
I could not overspill you could not overspill he could not overspill we could not overspill you could not overspill they could not overspill	I could not be overspilling you could not be overspilling he could not be overspilling we could not be overspilling you could not be overspilling they could not be overspilling
Perfect	V-ing perfect
I could not have overspilled you could not have overspilled he could not have overspilled we could not have overspilled you could not have overspilled they could not have overspilled	I could not have been overspilling you could not have been overspilling he could not have been overspilling we could not have been overspilling you could not have been overspilling they could not have been overspilling

Interrogative form

Simple form	V-ing form
could I overspill? could you overspill? could he overspill? could we overspill? could you overspill? could they overspill?	could I be overspilling? could you be overspilling? could he be overspilling? could we be overspilling? could you be overspilling? could they be overspilling?
Perfect	V-ing perfect
could I have overspilled? could you have overspilled? could he have overspilled? could we have overspilled? could you have overspilled? could they have overspilled?	could I have been overspilling? could you have been overspilling? could he have been overspilling? could we have been overspilling? could you have been overspilling? could they have been overspilling?

Interro-negative form

Simple form	V-ing form
could I not overspill? could you not overspill? could he not overspill? could we not overspill? could you not overspill? could they not overspill?	could I not be overspilling? could you not be overspilling? could he not be overspilling? could we not be overspilling? could you not be overspilling? could they not be overspilling?
Perfect	V-ing perfect
could I not have overspilled? could you not have overspilled? could he not have overspilled? could we not have overspilled? could you not have overspilled? could they not have overspilled?	could I not have been overspilling? could you not have been overspilling? could he not have been overspilling? could we not have been overspilling? could you not have been overspilling? could they not have been overspilling?