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 couldn't bake you couldn't bake he couldn't bake we couldn't bake you couldn't bake they couldn't bake	I couldn't be baking you couldn't be baking he couldn't be baking we couldn't be baking you couldn't be baking they couldn't be baking
Perfect	V-ing perfect
I couldn't have baked you couldn't have baked he couldn't have baked we couldn't have baked you couldn't have baked they couldn't have baked	I couldn't have been baking you couldn't have been baking he couldn't have been baking we couldn't have been baking you couldn't have been baking they couldn't 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
couldn't I bake? couldn't you bake? couldn't he bake? couldn't we bake? couldn't you bake? couldn't they bake?	couldn't I be baking? couldn't you be baking? couldn't he be baking? couldn't we be baking? couldn't you be baking? couldn't they be baking?
Perfect	V-ing perfect
couldn't I have baked? couldn't you have baked? couldn't he have baked? couldn't we have baked? couldn't you have baked? couldn't they have baked?	couldn't I have been baking? couldn't you have been baking? couldn't he have been baking? couldn't we have been baking? couldn't you have been baking? couldn't they have been baking?