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 couldn't sluice you couldn't sluice he couldn't sluice we couldn't sluice you couldn't sluice they couldn't sluice	I couldn't be sluicing you couldn't be sluicing he couldn't be sluicing we couldn't be sluicing you couldn't be sluicing they couldn't be sluicing
Perfect	V-ing perfect
I couldn't have sluiced you couldn't have sluiced he couldn't have sluiced we couldn't have sluiced you couldn't have sluiced they couldn't have sluiced	I couldn't have been sluicing you couldn't have been sluicing he couldn't have been sluicing we couldn't have been sluicing you couldn't have been sluicing they couldn't 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
couldn't I sluice? couldn't you sluice? couldn't he sluice? couldn't we sluice? couldn't you sluice? couldn't they sluice?	couldn't I be sluicing? couldn't you be sluicing? couldn't he be sluicing? couldn't we be sluicing? couldn't you be sluicing? couldn't they be sluicing?
Perfect	V-ing perfect
couldn't I have sluiced? couldn't you have sluiced? couldn't he have sluiced? couldn't we have sluiced? couldn't you have sluiced? couldn't they have sluiced?	couldn't I have been sluicing? couldn't you have been sluicing? couldn't he have been sluicing? couldn't we have been sluicing? couldn't you have been sluicing? couldn't they have been sluicing?