English verb conjugation
COULD CHUM

Regular verb: chum - chummed - chummed

Affirmation

Simple form	V-ing form
I could chum you could chum he could chum we could chum you could chum they could chum	I could be chumming you could be chumming he could be chumming we could be chumming you could be chumming they could be chumming
Perfect	V-ing perfect
I could have chummed you could have chummed he could have chummed we could have chummed you could have chummed they could have chummed	I could have been chumming you could have been chumming he could have been chumming we could have been chumming you could have been chumming they could have been chumming

Negation

Simple form	V-ing form
I could not chum you could not chum he could not chum we could not chum you could not chum they could not chum	I could not be chumming you could not be chumming he could not be chumming we could not be chumming you could not be chumming they could not be chumming
Perfect	V-ing perfect
I could not have chummed you could not have chummed he could not have chummed we could not have chummed you could not have chummed they could not have chummed	I could not have been chumming you could not have been chumming he could not have been chumming we could not have been chumming you could not have been chumming they could not have been chumming

Interrogative form

Simple form	V-ing form
could I chum? could you chum? could he chum? could we chum? could you chum? could they chum?	could I be chumming? could you be chumming? could he be chumming? could we be chumming? could you be chumming? could they be chumming?
Perfect	V-ing perfect
could I have chummed? could you have chummed? could he have chummed? could we have chummed? could you have chummed? could they have chummed?	could I have been chumming? could you have been chumming? could he have been chumming? could we have been chumming? could you have been chumming? could they have been chumming?

Interro-negative form

Simple form	V-ing form
could I not chum? could you not chum? could he not chum? could we not chum? could you not chum? could they not chum?	could I not be chumming? could you not be chumming? could he not be chumming? could we not be chumming? could you not be chumming? could they not be chumming?
Perfect	V-ing perfect
could I not have chummed? could you not have chummed? could he not have chummed? could we not have chummed? could you not have chummed? could they not have chummed?	could I not have been chumming? could you not have been chumming? could he not have been chumming? could we not have been chumming? could you not have been chumming? could they not have been chumming?