English verb conjugation
COULD BAKE

Regular verb: bake - baked - baked

Affirmation

Simple form	V-ing form
I could bake you could bake he could bake we could bake you could bake they could bake	I could be baking you could be baking he could be baking we could be baking you could be baking they could be baking
Perfect	V-ing perfect
I could have baked you could have baked he could have baked we could have baked you could have baked they could have baked	I could have been baking you could have been baking he could have been baking we could have been baking you could have been baking they could have been baking

Negation

Simple form	V-ing form
I could not bake you could not bake he could not bake we could not bake you could not bake they could not bake	I could not be baking you could not be baking he could not be baking we could not be baking you could not be baking they could not be baking
Perfect	V-ing perfect
I could not have baked you could not have baked he could not have baked we could not have baked you could not have baked they could not have baked	I could not have been baking you could not have been baking he could not have been baking we could not have been baking you could not have been baking they could not have been baking

Interrogative form

Simple form	V-ing form
could I bake? could you bake? could he bake? could we bake? could you bake? could they bake?	could I be baking? could you be baking? could he be baking? could we be baking? could you be baking? could they be baking?
Perfect	V-ing perfect
could I have baked? could you have baked? could he have baked? could we have baked? could you have baked? could they have baked?	could I have been baking? could you have been baking? could he have been baking? could we have been baking? could you have been baking? could they have been baking?

Interro-negative form

Simple form	V-ing form
could I not bake? could you not bake? could he not bake? could we not bake? could you not bake? could they not bake?	could I not be baking? could you not be baking? could he not be baking? could we not be baking? could you not be baking? could they not be baking?
Perfect	V-ing perfect
could I not have baked? could you not have baked? could he not have baked? could we not have baked? could you not have baked? could they not have baked?	could I not have been baking? could you not have been baking? could he not have been baking? could we not have been baking? could you not have been baking? could they not have been baking?