English verb conjugation
COULD HILL

Regular verb: hill - hilled - hilled

Affirmation

Simple form	V-ing form
I could hill you could hill he could hill we could hill you could hill they could hill	I could be hilling you could be hilling he could be hilling we could be hilling you could be hilling they could be hilling
Perfect	V-ing perfect
I could have hilled you could have hilled he could have hilled we could have hilled you could have hilled they could have hilled	I could have been hilling you could have been hilling he could have been hilling we could have been hilling you could have been hilling they could have been hilling

Negation

Simple form	V-ing form
I could not hill you could not hill he could not hill we could not hill you could not hill they could not hill	I could not be hilling you could not be hilling he could not be hilling we could not be hilling you could not be hilling they could not be hilling
Perfect	V-ing perfect
I could not have hilled you could not have hilled he could not have hilled we could not have hilled you could not have hilled they could not have hilled	I could not have been hilling you could not have been hilling he could not have been hilling we could not have been hilling you could not have been hilling they could not have been hilling

Interrogative form

Simple form	V-ing form
could I hill? could you hill? could he hill? could we hill? could you hill? could they hill?	could I be hilling? could you be hilling? could he be hilling? could we be hilling? could you be hilling? could they be hilling?
Perfect	V-ing perfect
could I have hilled? could you have hilled? could he have hilled? could we have hilled? could you have hilled? could they have hilled?	could I have been hilling? could you have been hilling? could he have been hilling? could we have been hilling? could you have been hilling? could they have been hilling?

Interro-negative form

Simple form	V-ing form
could I not hill? could you not hill? could he not hill? could we not hill? could you not hill? could they not hill?	could I not be hilling? could you not be hilling? could he not be hilling? could we not be hilling? could you not be hilling? could they not be hilling?
Perfect	V-ing perfect
could I not have hilled? could you not have hilled? could he not have hilled? could we not have hilled? could you not have hilled? could they not have hilled?	could I not have been hilling? could you not have been hilling? could he not have been hilling? could we not have been hilling? could you not have been hilling? could they not have been hilling?