English verb conjugation
COULD MUSH

Regular verb: mush - mushed - mushed

Affirmation

Simple form	V-ing form
I could mush you could mush he could mush we could mush you could mush they could mush	I could be mushing you could be mushing he could be mushing we could be mushing you could be mushing they could be mushing
Perfect	V-ing perfect
I could have mushed you could have mushed he could have mushed we could have mushed you could have mushed they could have mushed	I could have been mushing you could have been mushing he could have been mushing we could have been mushing you could have been mushing they could have been mushing

Negation

Simple form	V-ing form
I could not mush you could not mush he could not mush we could not mush you could not mush they could not mush	I could not be mushing you could not be mushing he could not be mushing we could not be mushing you could not be mushing they could not be mushing
Perfect	V-ing perfect
I could not have mushed you could not have mushed he could not have mushed we could not have mushed you could not have mushed they could not have mushed	I could not have been mushing you could not have been mushing he could not have been mushing we could not have been mushing you could not have been mushing they could not have been mushing

Interrogative form

Simple form	V-ing form
could I mush? could you mush? could he mush? could we mush? could you mush? could they mush?	could I be mushing? could you be mushing? could he be mushing? could we be mushing? could you be mushing? could they be mushing?
Perfect	V-ing perfect
could I have mushed? could you have mushed? could he have mushed? could we have mushed? could you have mushed? could they have mushed?	could I have been mushing? could you have been mushing? could he have been mushing? could we have been mushing? could you have been mushing? could they have been mushing?

Interro-negative form

Simple form	V-ing form
could I not mush? could you not mush? could he not mush? could we not mush? could you not mush? could they not mush?	could I not be mushing? could you not be mushing? could he not be mushing? could we not be mushing? could you not be mushing? could they not be mushing?
Perfect	V-ing perfect
could I not have mushed? could you not have mushed? could he not have mushed? could we not have mushed? could you not have mushed? could they not have mushed?	could I not have been mushing? could you not have been mushing? could he not have been mushing? could we not have been mushing? could you not have been mushing? could they not have been mushing?