English verb conjugation
COULD SILT

Regular verb: silt - silted - silted

Affirmation

Simple form	V-ing form
I could silt you could silt she could silt we could silt you could silt they could silt	I could be silting you could be silting she 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 she 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 she 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 she 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 she 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 she 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 she 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 she silt? could we silt? could you silt? could they silt?	could I be silting? could you be silting? could she 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 she 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 she 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 she 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 she 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 she 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 she not have been silting? could we not have been silting? could you not have been silting? could they not have been silting?