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 couldn't scrump you couldn't scrump he couldn't scrump we couldn't scrump you couldn't scrump they couldn't scrump	I couldn't be scrumping you couldn't be scrumping he couldn't be scrumping we couldn't be scrumping you couldn't be scrumping they couldn't be scrumping
Perfect	V-ing perfect
I couldn't have scrumped you couldn't have scrumped he couldn't have scrumped we couldn't have scrumped you couldn't have scrumped they couldn't have scrumped	I couldn't have been scrumping you couldn't have been scrumping he couldn't have been scrumping we couldn't have been scrumping you couldn't have been scrumping they couldn't 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
couldn't I scrump? couldn't you scrump? couldn't he scrump? couldn't we scrump? couldn't you scrump? couldn't they scrump?	couldn't I be scrumping? couldn't you be scrumping? couldn't he be scrumping? couldn't we be scrumping? couldn't you be scrumping? couldn't they be scrumping?
Perfect	V-ing perfect
couldn't I have scrumped? couldn't you have scrumped? couldn't he have scrumped? couldn't we have scrumped? couldn't you have scrumped? couldn't they have scrumped?	couldn't I have been scrumping? couldn't you have been scrumping? couldn't he have been scrumping? couldn't we have been scrumping? couldn't you have been scrumping? couldn't they have been scrumping?