I can silt you can silt he can silt we can silt you can silt they can silt
V-ing form
I can be silting you can be silting he can be silting we can be silting you can be silting they can be silting
Perfect
I can have silted you can have silted he can have silted we can have silted you can have silted they can have silted
V-ing perfect
I can have been silting you can have been silting he can have been silting we can have been silting you can have been silting they can have been silting
Negation
Simple form
I cannot silt you cannot silt he cannot silt we cannot silt you cannot silt they cannot silt
V-ing form
I cannot be silting you cannot be silting he cannot be silting we cannot be silting you cannot be silting they cannot be silting
Perfect
I cannot have silted you cannot have silted he cannot have silted we cannot have silted you cannot have silted they cannot have silted
V-ing perfect
I cannot have been silting you cannot have been silting he cannot have been silting we cannot have been silting you cannot have been silting they cannot have been silting
Interrogative form
Simple form
can I silt? can you silt? can he silt? can we silt? can you silt? can they silt?
V-ing form
can I be silting? can you be silting? can he be silting? can we be silting? can you be silting? can they be silting?
Perfect
can I have silted? can you have silted? can he have silted? can we have silted? can you have silted? can they have silted?
V-ing perfect
can I have been silting? can you have been silting? can he have been silting? can we have been silting? can you have been silting? can they have been silting?
Interro-negative form
Simple form
can I not silt? can you not silt? can he not silt? can we not silt? can you not silt? can they not silt?
V-ing form
can I not be silting? can you not be silting? can he not be silting? can we not be silting? can you not be silting? can they not be silting?
Perfect
can I not have silted? can you not have silted? can he not have silted? can we not have silted? can you not have silted? can they not have silted?
V-ing perfect
can I not have been silting? can you not have been silting? can he not have been silting? can we not have been silting? can you not have been silting? can they not have been silting?