English verb conjugation
COULD DECONTAMINATE

Regular verb: decontaminate - decontaminated - decontaminated

Affirmation

Simple form	V-ing form
I could decontaminate you could decontaminate she could decontaminate we could decontaminate you could decontaminate they could decontaminate	I could be decontaminating you could be decontaminating she could be decontaminating we could be decontaminating you could be decontaminating they could be decontaminating
Perfect	V-ing perfect
I could have decontaminated you could have decontaminated she could have decontaminated we could have decontaminated you could have decontaminated they could have decontaminated	I could have been decontaminating you could have been decontaminating she could have been decontaminating we could have been decontaminating you could have been decontaminating they could have been decontaminating

Negation

Simple form	V-ing form
I could not decontaminate you could not decontaminate she could not decontaminate we could not decontaminate you could not decontaminate they could not decontaminate	I could not be decontaminating you could not be decontaminating she could not be decontaminating we could not be decontaminating you could not be decontaminating they could not be decontaminating
Perfect	V-ing perfect
I could not have decontaminated you could not have decontaminated she could not have decontaminated we could not have decontaminated you could not have decontaminated they could not have decontaminated	I could not have been decontaminating you could not have been decontaminating she could not have been decontaminating we could not have been decontaminating you could not have been decontaminating they could not have been decontaminating

Interrogative form

Simple form	V-ing form
could I decontaminate? could you decontaminate? could she decontaminate? could we decontaminate? could you decontaminate? could they decontaminate?	could I be decontaminating? could you be decontaminating? could she be decontaminating? could we be decontaminating? could you be decontaminating? could they be decontaminating?
Perfect	V-ing perfect
could I have decontaminated? could you have decontaminated? could she have decontaminated? could we have decontaminated? could you have decontaminated? could they have decontaminated?	could I have been decontaminating? could you have been decontaminating? could she have been decontaminating? could we have been decontaminating? could you have been decontaminating? could they have been decontaminating?

Interro-negative form

Simple form	V-ing form
could I not decontaminate? could you not decontaminate? could she not decontaminate? could we not decontaminate? could you not decontaminate? could they not decontaminate?	could I not be decontaminating? could you not be decontaminating? could she not be decontaminating? could we not be decontaminating? could you not be decontaminating? could they not be decontaminating?
Perfect	V-ing perfect
could I not have decontaminated? could you not have decontaminated? could she not have decontaminated? could we not have decontaminated? could you not have decontaminated? could they not have decontaminated?	could I not have been decontaminating? could you not have been decontaminating? could she not have been decontaminating? could we not have been decontaminating? could you not have been decontaminating? could they not have been decontaminating?