English verb conjugation
COULD HALF-FILL

Regular verb: half-fill - half-filled - half-filled

Affirmation

Simple form	V-ing form
I could half-fill you could half-fill he could half-fill we could half-fill you could half-fill they could half-fill	I could be half-filling you could be half-filling he could be half-filling we could be half-filling you could be half-filling they could be half-filling
Perfect	V-ing perfect
I could have half-filled you could have half-filled he could have half-filled we could have half-filled you could have half-filled they could have half-filled	I could have been half-filling you could have been half-filling he could have been half-filling we could have been half-filling you could have been half-filling they could have been half-filling

Negation

Simple form	V-ing form
I could not half-fill you could not half-fill he could not half-fill we could not half-fill you could not half-fill they could not half-fill	I could not be half-filling you could not be half-filling he could not be half-filling we could not be half-filling you could not be half-filling they could not be half-filling
Perfect	V-ing perfect
I could not have half-filled you could not have half-filled he could not have half-filled we could not have half-filled you could not have half-filled they could not have half-filled	I could not have been half-filling you could not have been half-filling he could not have been half-filling we could not have been half-filling you could not have been half-filling they could not have been half-filling

Interrogative form

Simple form	V-ing form
could I half-fill? could you half-fill? could he half-fill? could we half-fill? could you half-fill? could they half-fill?	could I be half-filling? could you be half-filling? could he be half-filling? could we be half-filling? could you be half-filling? could they be half-filling?
Perfect	V-ing perfect
could I have half-filled? could you have half-filled? could he have half-filled? could we have half-filled? could you have half-filled? could they have half-filled?	could I have been half-filling? could you have been half-filling? could he have been half-filling? could we have been half-filling? could you have been half-filling? could they have been half-filling?

Interro-negative form

Simple form	V-ing form
could I not half-fill? could you not half-fill? could he not half-fill? could we not half-fill? could you not half-fill? could they not half-fill?	could I not be half-filling? could you not be half-filling? could he not be half-filling? could we not be half-filling? could you not be half-filling? could they not be half-filling?
Perfect	V-ing perfect
could I not have half-filled? could you not have half-filled? could he not have half-filled? could we not have half-filled? could you not have half-filled? could they not have half-filled?	could I not have been half-filling? could you not have been half-filling? could he not have been half-filling? could we not have been half-filling? could you not have been half-filling? could they not have been half-filling?