I can bank you can bank he can bank we can bank you can bank they can bank
V-ing form
I can be banking you can be banking he can be banking we can be banking you can be banking they can be banking
Perfect
I can have banked you can have banked he can have banked we can have banked you can have banked they can have banked
V-ing perfect
I can have been banking you can have been banking he can have been banking we can have been banking you can have been banking they can have been banking
Negation
Simple form
I cannot bank you cannot bank he cannot bank we cannot bank you cannot bank they cannot bank
V-ing form
I cannot be banking you cannot be banking he cannot be banking we cannot be banking you cannot be banking they cannot be banking
Perfect
I cannot have banked you cannot have banked he cannot have banked we cannot have banked you cannot have banked they cannot have banked
V-ing perfect
I cannot have been banking you cannot have been banking he cannot have been banking we cannot have been banking you cannot have been banking they cannot have been banking
Interrogative form
Simple form
can I bank? can you bank? can he bank? can we bank? can you bank? can they bank?
V-ing form
can I be banking? can you be banking? can he be banking? can we be banking? can you be banking? can they be banking?
Perfect
can I have banked? can you have banked? can he have banked? can we have banked? can you have banked? can they have banked?
V-ing perfect
can I have been banking? can you have been banking? can he have been banking? can we have been banking? can you have been banking? can they have been banking?
Interro-negative form
Simple form
can I not bank? can you not bank? can he not bank? can we not bank? can you not bank? can they not bank?
V-ing form
can I not be banking? can you not be banking? can he not be banking? can we not be banking? can you not be banking? can they not be banking?
Perfect
can I not have banked? can you not have banked? can he not have banked? can we not have banked? can you not have banked? can they not have banked?
V-ing perfect
can I not have been banking? can you not have been banking? can he not have been banking? can we not have been banking? can you not have been banking? can they not have been banking?