I can bank you can bank she can bank we can bank you can bank they can bank
V-ing form
I can be banking you can be banking she can be banking we can be banking you can be banking they can be banking
Perfect
I can have banked you can have banked she 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 she can have been banking we can have been banking you can have been banking they can have been banking
Negation
Simple form
I can't bank you can't bank she can't bank we can't bank you can't bank they can't bank
V-ing form
I can't be banking you can't be banking she can't be banking we can't be banking you can't be banking they can't be banking
Perfect
I can't have banked you can't have banked she can't have banked we can't have banked you can't have banked they can't have banked
V-ing perfect
I can't have been banking you can't have been banking she can't have been banking we can't have been banking you can't have been banking they can't have been banking
Interrogative form
Simple form
can I bank? can you bank? can she bank? can we bank? can you bank? can they bank?
V-ing form
can I be banking? can you be banking? can she be banking? can we be banking? can you be banking? can they be banking?
Perfect
can I have banked? can you have banked? can she 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 she have been banking? can we have been banking? can you have been banking? can they have been banking?
Interro-negative form
Simple form
can't I bank? can't you bank? can't she bank? can't we bank? can't you bank? can't they bank?
V-ing form
can't I be banking? can't you be banking? can't she be banking? can't we be banking? can't you be banking? can't they be banking?
Perfect
can't I have banked? can't you have banked? can't she have banked? can't we have banked? can't you have banked? can't they have banked?
V-ing perfect
can't I have been banking? can't you have been banking? can't she have been banking? can't we have been banking? can't you have been banking? can't they have been banking?