English verb conjugation
COULD DEVALUE

Regular verb: devalue - devalued - devalued

Affirmation

Simple form	V-ing form
I could devalue you could devalue he could devalue we could devalue you could devalue they could devalue	I could be devaluing you could be devaluing he could be devaluing we could be devaluing you could be devaluing they could be devaluing
Perfect	V-ing perfect
I could have devalued you could have devalued he could have devalued we could have devalued you could have devalued they could have devalued	I could have been devaluing you could have been devaluing he could have been devaluing we could have been devaluing you could have been devaluing they could have been devaluing

Negation

Simple form	V-ing form
I could not devalue you could not devalue he could not devalue we could not devalue you could not devalue they could not devalue	I could not be devaluing you could not be devaluing he could not be devaluing we could not be devaluing you could not be devaluing they could not be devaluing
Perfect	V-ing perfect
I could not have devalued you could not have devalued he could not have devalued we could not have devalued you could not have devalued they could not have devalued	I could not have been devaluing you could not have been devaluing he could not have been devaluing we could not have been devaluing you could not have been devaluing they could not have been devaluing

Interrogative form

Simple form	V-ing form
could I devalue? could you devalue? could he devalue? could we devalue? could you devalue? could they devalue?	could I be devaluing? could you be devaluing? could he be devaluing? could we be devaluing? could you be devaluing? could they be devaluing?
Perfect	V-ing perfect
could I have devalued? could you have devalued? could he have devalued? could we have devalued? could you have devalued? could they have devalued?	could I have been devaluing? could you have been devaluing? could he have been devaluing? could we have been devaluing? could you have been devaluing? could they have been devaluing?

Interro-negative form

Simple form	V-ing form
could I not devalue? could you not devalue? could he not devalue? could we not devalue? could you not devalue? could they not devalue?	could I not be devaluing? could you not be devaluing? could he not be devaluing? could we not be devaluing? could you not be devaluing? could they not be devaluing?
Perfect	V-ing perfect
could I not have devalued? could you not have devalued? could he not have devalued? could we not have devalued? could you not have devalued? could they not have devalued?	could I not have been devaluing? could you not have been devaluing? could he not have been devaluing? could we not have been devaluing? could you not have been devaluing? could they not have been devaluing?