English verb conjugation
COULD CORNICE

Regular verb: cornice - corniced - corniced

Affirmation

Simple form	V-ing form
I could cornice you could cornice he could cornice we could cornice you could cornice they could cornice	I could be cornicing you could be cornicing he could be cornicing we could be cornicing you could be cornicing they could be cornicing
Perfect	V-ing perfect
I could have corniced you could have corniced he could have corniced we could have corniced you could have corniced they could have corniced	I could have been cornicing you could have been cornicing he could have been cornicing we could have been cornicing you could have been cornicing they could have been cornicing

Negation

Simple form	V-ing form
I couldn't cornice you couldn't cornice he couldn't cornice we couldn't cornice you couldn't cornice they couldn't cornice	I couldn't be cornicing you couldn't be cornicing he couldn't be cornicing we couldn't be cornicing you couldn't be cornicing they couldn't be cornicing
Perfect	V-ing perfect
I couldn't have corniced you couldn't have corniced he couldn't have corniced we couldn't have corniced you couldn't have corniced they couldn't have corniced	I couldn't have been cornicing you couldn't have been cornicing he couldn't have been cornicing we couldn't have been cornicing you couldn't have been cornicing they couldn't have been cornicing

Interrogative form

Simple form	V-ing form
could I cornice? could you cornice? could he cornice? could we cornice? could you cornice? could they cornice?	could I be cornicing? could you be cornicing? could he be cornicing? could we be cornicing? could you be cornicing? could they be cornicing?
Perfect	V-ing perfect
could I have corniced? could you have corniced? could he have corniced? could we have corniced? could you have corniced? could they have corniced?	could I have been cornicing? could you have been cornicing? could he have been cornicing? could we have been cornicing? could you have been cornicing? could they have been cornicing?

Interro-negative form

Simple form	V-ing form
couldn't I cornice? couldn't you cornice? couldn't he cornice? couldn't we cornice? couldn't you cornice? couldn't they cornice?	couldn't I be cornicing? couldn't you be cornicing? couldn't he be cornicing? couldn't we be cornicing? couldn't you be cornicing? couldn't they be cornicing?
Perfect	V-ing perfect
couldn't I have corniced? couldn't you have corniced? couldn't he have corniced? couldn't we have corniced? couldn't you have corniced? couldn't they have corniced?	couldn't I have been cornicing? couldn't you have been cornicing? couldn't he have been cornicing? couldn't we have been cornicing? couldn't you have been cornicing? couldn't they have been cornicing?