I can shill you can shill he can shill we can shill you can shill they can shill
V-ing form
I can be shilling you can be shilling he can be shilling we can be shilling you can be shilling they can be shilling
Perfect
I can have shilled you can have shilled he can have shilled we can have shilled you can have shilled they can have shilled
V-ing perfect
I can have been shilling you can have been shilling he can have been shilling we can have been shilling you can have been shilling they can have been shilling
Negation
Simple form
I cannot shill you cannot shill he cannot shill we cannot shill you cannot shill they cannot shill
V-ing form
I cannot be shilling you cannot be shilling he cannot be shilling we cannot be shilling you cannot be shilling they cannot be shilling
Perfect
I cannot have shilled you cannot have shilled he cannot have shilled we cannot have shilled you cannot have shilled they cannot have shilled
V-ing perfect
I cannot have been shilling you cannot have been shilling he cannot have been shilling we cannot have been shilling you cannot have been shilling they cannot have been shilling
Interrogative form
Simple form
can I shill? can you shill? can he shill? can we shill? can you shill? can they shill?
V-ing form
can I be shilling? can you be shilling? can he be shilling? can we be shilling? can you be shilling? can they be shilling?
Perfect
can I have shilled? can you have shilled? can he have shilled? can we have shilled? can you have shilled? can they have shilled?
V-ing perfect
can I have been shilling? can you have been shilling? can he have been shilling? can we have been shilling? can you have been shilling? can they have been shilling?
Interro-negative form
Simple form
can I not shill? can you not shill? can he not shill? can we not shill? can you not shill? can they not shill?
V-ing form
can I not be shilling? can you not be shilling? can he not be shilling? can we not be shilling? can you not be shilling? can they not be shilling?
Perfect
can I not have shilled? can you not have shilled? can he not have shilled? can we not have shilled? can you not have shilled? can they not have shilled?
V-ing perfect
can I not have been shilling? can you not have been shilling? can he not have been shilling? can we not have been shilling? can you not have been shilling? can they not have been shilling?