English verb conjugation
COULD SLUICE

Regular verb: sluice - sluiced - sluiced

Affirmation

Simple form	V-ing form
I could sluice you could sluice he could sluice we could sluice you could sluice they could sluice	I could be sluicing you could be sluicing he could be sluicing we could be sluicing you could be sluicing they could be sluicing
Perfect	V-ing perfect
I could have sluiced you could have sluiced he could have sluiced we could have sluiced you could have sluiced they could have sluiced	I could have been sluicing you could have been sluicing he could have been sluicing we could have been sluicing you could have been sluicing they could have been sluicing

Negation

Simple form	V-ing form
I could not sluice you could not sluice he could not sluice we could not sluice you could not sluice they could not sluice	I could not be sluicing you could not be sluicing he could not be sluicing we could not be sluicing you could not be sluicing they could not be sluicing
Perfect	V-ing perfect
I could not have sluiced you could not have sluiced he could not have sluiced we could not have sluiced you could not have sluiced they could not have sluiced	I could not have been sluicing you could not have been sluicing he could not have been sluicing we could not have been sluicing you could not have been sluicing they could not have been sluicing

Interrogative form

Simple form	V-ing form
could I sluice? could you sluice? could he sluice? could we sluice? could you sluice? could they sluice?	could I be sluicing? could you be sluicing? could he be sluicing? could we be sluicing? could you be sluicing? could they be sluicing?
Perfect	V-ing perfect
could I have sluiced? could you have sluiced? could he have sluiced? could we have sluiced? could you have sluiced? could they have sluiced?	could I have been sluicing? could you have been sluicing? could he have been sluicing? could we have been sluicing? could you have been sluicing? could they have been sluicing?

Interro-negative form

Simple form	V-ing form
could I not sluice? could you not sluice? could he not sluice? could we not sluice? could you not sluice? could they not sluice?	could I not be sluicing? could you not be sluicing? could he not be sluicing? could we not be sluicing? could you not be sluicing? could they not be sluicing?
Perfect	V-ing perfect
could I not have sluiced? could you not have sluiced? could he not have sluiced? could we not have sluiced? could you not have sluiced? could they not have sluiced?	could I not have been sluicing? could you not have been sluicing? could he not have been sluicing? could we not have been sluicing? could you not have been sluicing? could they not have been sluicing?