English verb conjugation
COULD OUTRIVAL

Regular verb: outrival - outrivaled - outrivaled

Affirmation

Simple form	V-ing form
I could outrival you could outrival he could outrival we could outrival you could outrival they could outrival	I could be outrivaling you could be outrivaling he could be outrivaling we could be outrivaling you could be outrivaling they could be outrivaling
Perfect	V-ing perfect
I could have outrivaled you could have outrivaled he could have outrivaled we could have outrivaled you could have outrivaled they could have outrivaled	I could have been outrivaling you could have been outrivaling he could have been outrivaling we could have been outrivaling you could have been outrivaling they could have been outrivaling

Negation

Simple form	V-ing form
I couldn't outrival you couldn't outrival he couldn't outrival we couldn't outrival you couldn't outrival they couldn't outrival	I couldn't be outrivaling you couldn't be outrivaling he couldn't be outrivaling we couldn't be outrivaling you couldn't be outrivaling they couldn't be outrivaling
Perfect	V-ing perfect
I couldn't have outrivaled you couldn't have outrivaled he couldn't have outrivaled we couldn't have outrivaled you couldn't have outrivaled they couldn't have outrivaled	I couldn't have been outrivaling you couldn't have been outrivaling he couldn't have been outrivaling we couldn't have been outrivaling you couldn't have been outrivaling they couldn't have been outrivaling

Interrogative form

Simple form	V-ing form
could I outrival? could you outrival? could he outrival? could we outrival? could you outrival? could they outrival?	could I be outrivaling? could you be outrivaling? could he be outrivaling? could we be outrivaling? could you be outrivaling? could they be outrivaling?
Perfect	V-ing perfect
could I have outrivaled? could you have outrivaled? could he have outrivaled? could we have outrivaled? could you have outrivaled? could they have outrivaled?	could I have been outrivaling? could you have been outrivaling? could he have been outrivaling? could we have been outrivaling? could you have been outrivaling? could they have been outrivaling?

Interro-negative form

Simple form	V-ing form
couldn't I outrival? couldn't you outrival? couldn't he outrival? couldn't we outrival? couldn't you outrival? couldn't they outrival?	couldn't I be outrivaling? couldn't you be outrivaling? couldn't he be outrivaling? couldn't we be outrivaling? couldn't you be outrivaling? couldn't they be outrivaling?
Perfect	V-ing perfect
couldn't I have outrivaled? couldn't you have outrivaled? couldn't he have outrivaled? couldn't we have outrivaled? couldn't you have outrivaled? couldn't they have outrivaled?	couldn't I have been outrivaling? couldn't you have been outrivaling? couldn't he have been outrivaling? couldn't we have been outrivaling? couldn't you have been outrivaling? couldn't they have been outrivaling?