I can snub you can snub he can snub we can snub you can snub they can snub
V-ing form
I can be snubbing you can be snubbing he can be snubbing we can be snubbing you can be snubbing they can be snubbing
Perfect
I can have snubbed you can have snubbed he can have snubbed we can have snubbed you can have snubbed they can have snubbed
V-ing perfect
I can have been snubbing you can have been snubbing he can have been snubbing we can have been snubbing you can have been snubbing they can have been snubbing
Negation
Simple form
I cannot snub you cannot snub he cannot snub we cannot snub you cannot snub they cannot snub
V-ing form
I cannot be snubbing you cannot be snubbing he cannot be snubbing we cannot be snubbing you cannot be snubbing they cannot be snubbing
Perfect
I cannot have snubbed you cannot have snubbed he cannot have snubbed we cannot have snubbed you cannot have snubbed they cannot have snubbed
V-ing perfect
I cannot have been snubbing you cannot have been snubbing he cannot have been snubbing we cannot have been snubbing you cannot have been snubbing they cannot have been snubbing
Interrogative form
Simple form
can I snub? can you snub? can he snub? can we snub? can you snub? can they snub?
V-ing form
can I be snubbing? can you be snubbing? can he be snubbing? can we be snubbing? can you be snubbing? can they be snubbing?
Perfect
can I have snubbed? can you have snubbed? can he have snubbed? can we have snubbed? can you have snubbed? can they have snubbed?
V-ing perfect
can I have been snubbing? can you have been snubbing? can he have been snubbing? can we have been snubbing? can you have been snubbing? can they have been snubbing?
Interro-negative form
Simple form
can I not snub? can you not snub? can he not snub? can we not snub? can you not snub? can they not snub?
V-ing form
can I not be snubbing? can you not be snubbing? can he not be snubbing? can we not be snubbing? can you not be snubbing? can they not be snubbing?
Perfect
can I not have snubbed? can you not have snubbed? can he not have snubbed? can we not have snubbed? can you not have snubbed? can they not have snubbed?
V-ing perfect
can I not have been snubbing? can you not have been snubbing? can he not have been snubbing? can we not have been snubbing? can you not have been snubbing? can they not have been snubbing?