English verb conjugation
COULD HILL

Regular verb: hill - hilled - hilled

Affirmation

Simple form	V-ing form
I could hill you could hill she could hill we could hill you could hill they could hill	I could be hilling you could be hilling she 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 she 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 she 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 couldn't hill you couldn't hill she couldn't hill we couldn't hill you couldn't hill they couldn't hill	I couldn't be hilling you couldn't be hilling she couldn't be hilling we couldn't be hilling you couldn't be hilling they couldn't be hilling
Perfect	V-ing perfect
I couldn't have hilled you couldn't have hilled she couldn't have hilled we couldn't have hilled you couldn't have hilled they couldn't have hilled	I couldn't have been hilling you couldn't have been hilling she couldn't have been hilling we couldn't have been hilling you couldn't have been hilling they couldn't have been hilling

Interrogative form

Simple form	V-ing form
could I hill? could you hill? could she hill? could we hill? could you hill? could they hill?	could I be hilling? could you be hilling? could she 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 she 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 she 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
couldn't I hill? couldn't you hill? couldn't she hill? couldn't we hill? couldn't you hill? couldn't they hill?	couldn't I be hilling? couldn't you be hilling? couldn't she be hilling? couldn't we be hilling? couldn't you be hilling? couldn't they be hilling?
Perfect	V-ing perfect
couldn't I have hilled? couldn't you have hilled? couldn't she have hilled? couldn't we have hilled? couldn't you have hilled? couldn't they have hilled?	couldn't I have been hilling? couldn't you have been hilling? couldn't she have been hilling? couldn't we have been hilling? couldn't you have been hilling? couldn't they have been hilling?