English verb conjugation
COULD SCRUMP

Regular verb: scrump - scrumped - scrumped

Affirmation

Simple form	V-ing form
I could scrump you could scrump he could scrump we could scrump you could scrump they could scrump	I could be scrumping you could be scrumping he could be scrumping we could be scrumping you could be scrumping they could be scrumping
Perfect	V-ing perfect
I could have scrumped you could have scrumped he could have scrumped we could have scrumped you could have scrumped they could have scrumped	I could have been scrumping you could have been scrumping he could have been scrumping we could have been scrumping you could have been scrumping they could have been scrumping

Negation

Simple form	V-ing form
I could not scrump you could not scrump he could not scrump we could not scrump you could not scrump they could not scrump	I could not be scrumping you could not be scrumping he could not be scrumping we could not be scrumping you could not be scrumping they could not be scrumping
Perfect	V-ing perfect
I could not have scrumped you could not have scrumped he could not have scrumped we could not have scrumped you could not have scrumped they could not have scrumped	I could not have been scrumping you could not have been scrumping he could not have been scrumping we could not have been scrumping you could not have been scrumping they could not have been scrumping

Interrogative form

Simple form	V-ing form
could I scrump? could you scrump? could he scrump? could we scrump? could you scrump? could they scrump?	could I be scrumping? could you be scrumping? could he be scrumping? could we be scrumping? could you be scrumping? could they be scrumping?
Perfect	V-ing perfect
could I have scrumped? could you have scrumped? could he have scrumped? could we have scrumped? could you have scrumped? could they have scrumped?	could I have been scrumping? could you have been scrumping? could he have been scrumping? could we have been scrumping? could you have been scrumping? could they have been scrumping?

Interro-negative form

Simple form	V-ing form
could I not scrump? could you not scrump? could he not scrump? could we not scrump? could you not scrump? could they not scrump?	could I not be scrumping? could you not be scrumping? could he not be scrumping? could we not be scrumping? could you not be scrumping? could they not be scrumping?
Perfect	V-ing perfect
could I not have scrumped? could you not have scrumped? could he not have scrumped? could we not have scrumped? could you not have scrumped? could they not have scrumped?	could I not have been scrumping? could you not have been scrumping? could he not have been scrumping? could we not have been scrumping? could you not have been scrumping? could they not have been scrumping?