English verb conjugation
COULD SILT

Regular verb: silt - silted - silted

Affirmation

Simple form	V-ing form
I could silt you could silt he could silt we could silt you could silt they could silt	I could be silting you could be silting he could be silting we could be silting you could be silting they could be silting
Perfect	V-ing perfect
I could have silted you could have silted he could have silted we could have silted you could have silted they could have silted	I could have been silting you could have been silting he could have been silting we could have been silting you could have been silting they could have been silting

Negation

Simple form	V-ing form
I could not silt you could not silt he could not silt we could not silt you could not silt they could not silt	I could not be silting you could not be silting he could not be silting we could not be silting you could not be silting they could not be silting
Perfect	V-ing perfect
I could not have silted you could not have silted he could not have silted we could not have silted you could not have silted they could not have silted	I could not have been silting you could not have been silting he could not have been silting we could not have been silting you could not have been silting they could not have been silting

Interrogative form

Simple form	V-ing form
could I silt? could you silt? could he silt? could we silt? could you silt? could they silt?	could I be silting? could you be silting? could he be silting? could we be silting? could you be silting? could they be silting?
Perfect	V-ing perfect
could I have silted? could you have silted? could he have silted? could we have silted? could you have silted? could they have silted?	could I have been silting? could you have been silting? could he have been silting? could we have been silting? could you have been silting? could they have been silting?

Interro-negative form

Simple form	V-ing form
could I not silt? could you not silt? could he not silt? could we not silt? could you not silt? could they not silt?	could I not be silting? could you not be silting? could he not be silting? could we not be silting? could you not be silting? could they not be silting?
Perfect	V-ing perfect
could I not have silted? could you not have silted? could he not have silted? could we not have silted? could you not have silted? could they not have silted?	could I not have been silting? could you not have been silting? could he not have been silting? could we not have been silting? could you not have been silting? could they not have been silting?