English verb conjugation
COULD ONE-UP

Regular verb: one-up - one-uped - one-uped

Affirmation

Simple form	V-ing form
I could one-up you could one-up he could one-up we could one-up you could one-up they could one-up	I could be one-uping you could be one-uping he could be one-uping we could be one-uping you could be one-uping they could be one-uping
Perfect	V-ing perfect
I could have one-uped you could have one-uped he could have one-uped we could have one-uped you could have one-uped they could have one-uped	I could have been one-uping you could have been one-uping he could have been one-uping we could have been one-uping you could have been one-uping they could have been one-uping

Negation

Simple form	V-ing form
I couldn't one-up you couldn't one-up he couldn't one-up we couldn't one-up you couldn't one-up they couldn't one-up	I couldn't be one-uping you couldn't be one-uping he couldn't be one-uping we couldn't be one-uping you couldn't be one-uping they couldn't be one-uping
Perfect	V-ing perfect
I couldn't have one-uped you couldn't have one-uped he couldn't have one-uped we couldn't have one-uped you couldn't have one-uped they couldn't have one-uped	I couldn't have been one-uping you couldn't have been one-uping he couldn't have been one-uping we couldn't have been one-uping you couldn't have been one-uping they couldn't have been one-uping

Interrogative form

Simple form	V-ing form
could I one-up? could you one-up? could he one-up? could we one-up? could you one-up? could they one-up?	could I be one-uping? could you be one-uping? could he be one-uping? could we be one-uping? could you be one-uping? could they be one-uping?
Perfect	V-ing perfect
could I have one-uped? could you have one-uped? could he have one-uped? could we have one-uped? could you have one-uped? could they have one-uped?	could I have been one-uping? could you have been one-uping? could he have been one-uping? could we have been one-uping? could you have been one-uping? could they have been one-uping?

Interro-negative form

Simple form	V-ing form
couldn't I one-up? couldn't you one-up? couldn't he one-up? couldn't we one-up? couldn't you one-up? couldn't they one-up?	couldn't I be one-uping? couldn't you be one-uping? couldn't he be one-uping? couldn't we be one-uping? couldn't you be one-uping? couldn't they be one-uping?
Perfect	V-ing perfect
couldn't I have one-uped? couldn't you have one-uped? couldn't he have one-uped? couldn't we have one-uped? couldn't you have one-uped? couldn't they have one-uped?	couldn't I have been one-uping? couldn't you have been one-uping? couldn't he have been one-uping? couldn't we have been one-uping? couldn't you have been one-uping? couldn't they have been one-uping?