could silt
Regular verb: silt - silted- silted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?