English verb conjugation
COULD CAVE

Regular verb: cave - caved - caved

Affirmation

Simple form	V-ing form
I could cave you could cave she could cave we could cave you could cave they could cave	I could be caving you could be caving she could be caving we could be caving you could be caving they could be caving
Perfect	V-ing perfect
I could have caved you could have caved she could have caved we could have caved you could have caved they could have caved	I could have been caving you could have been caving she could have been caving we could have been caving you could have been caving they could have been caving

Negation

Simple form	V-ing form
I could not cave you could not cave she could not cave we could not cave you could not cave they could not cave	I could not be caving you could not be caving she could not be caving we could not be caving you could not be caving they could not be caving
Perfect	V-ing perfect
I could not have caved you could not have caved she could not have caved we could not have caved you could not have caved they could not have caved	I could not have been caving you could not have been caving she could not have been caving we could not have been caving you could not have been caving they could not have been caving

Interrogative form

Simple form	V-ing form
could I cave? could you cave? could she cave? could we cave? could you cave? could they cave?	could I be caving? could you be caving? could she be caving? could we be caving? could you be caving? could they be caving?
Perfect	V-ing perfect
could I have caved? could you have caved? could she have caved? could we have caved? could you have caved? could they have caved?	could I have been caving? could you have been caving? could she have been caving? could we have been caving? could you have been caving? could they have been caving?

Interro-negative form

Simple form	V-ing form
could I not cave? could you not cave? could she not cave? could we not cave? could you not cave? could they not cave?	could I not be caving? could you not be caving? could she not be caving? could we not be caving? could you not be caving? could they not be caving?
Perfect	V-ing perfect
could I not have caved? could you not have caved? could she not have caved? could we not have caved? could you not have caved? could they not have caved?	could I not have been caving? could you not have been caving? could she not have been caving? could we not have been caving? could you not have been caving? could they not have been caving?