I can disturb you can disturb he can disturb we can disturb you can disturb they can disturb
V-ing form
I can be disturbing you can be disturbing he can be disturbing we can be disturbing you can be disturbing they can be disturbing
Perfect
I can have disturbed you can have disturbed he can have disturbed we can have disturbed you can have disturbed they can have disturbed
V-ing perfect
I can have been disturbing you can have been disturbing he can have been disturbing we can have been disturbing you can have been disturbing they can have been disturbing
Negation
Simple form
I cannot disturb you cannot disturb he cannot disturb we cannot disturb you cannot disturb they cannot disturb
V-ing form
I cannot be disturbing you cannot be disturbing he cannot be disturbing we cannot be disturbing you cannot be disturbing they cannot be disturbing
Perfect
I cannot have disturbed you cannot have disturbed he cannot have disturbed we cannot have disturbed you cannot have disturbed they cannot have disturbed
V-ing perfect
I cannot have been disturbing you cannot have been disturbing he cannot have been disturbing we cannot have been disturbing you cannot have been disturbing they cannot have been disturbing
Interrogative form
Simple form
can I disturb? can you disturb? can he disturb? can we disturb? can you disturb? can they disturb?
V-ing form
can I be disturbing? can you be disturbing? can he be disturbing? can we be disturbing? can you be disturbing? can they be disturbing?
Perfect
can I have disturbed? can you have disturbed? can he have disturbed? can we have disturbed? can you have disturbed? can they have disturbed?
V-ing perfect
can I have been disturbing? can you have been disturbing? can he have been disturbing? can we have been disturbing? can you have been disturbing? can they have been disturbing?
Interro-negative form
Simple form
can I not disturb? can you not disturb? can he not disturb? can we not disturb? can you not disturb? can they not disturb?
V-ing form
can I not be disturbing? can you not be disturbing? can he not be disturbing? can we not be disturbing? can you not be disturbing? can they not be disturbing?
Perfect
can I not have disturbed? can you not have disturbed? can he not have disturbed? can we not have disturbed? can you not have disturbed? can they not have disturbed?
V-ing perfect
can I not have been disturbing? can you not have been disturbing? can he not have been disturbing? can we not have been disturbing? can you not have been disturbing? can they not have been disturbing?