I can cab you can cab she can cab we can cab you can cab they can cab
V-ing form
I can be cabing you can be cabing she can be cabing we can be cabing you can be cabing they can be cabing
Perfect
I can have cabed you can have cabed she can have cabed we can have cabed you can have cabed they can have cabed
V-ing perfect
I can have been cabing you can have been cabing she can have been cabing we can have been cabing you can have been cabing they can have been cabing
Negation
Simple form
I cannot cab you cannot cab she cannot cab we cannot cab you cannot cab they cannot cab
V-ing form
I cannot be cabing you cannot be cabing she cannot be cabing we cannot be cabing you cannot be cabing they cannot be cabing
Perfect
I cannot have cabed you cannot have cabed she cannot have cabed we cannot have cabed you cannot have cabed they cannot have cabed
V-ing perfect
I cannot have been cabing you cannot have been cabing she cannot have been cabing we cannot have been cabing you cannot have been cabing they cannot have been cabing
Interrogative form
Simple form
can I cab? can you cab? can she cab? can we cab? can you cab? can they cab?
V-ing form
can I be cabing? can you be cabing? can she be cabing? can we be cabing? can you be cabing? can they be cabing?
Perfect
can I have cabed? can you have cabed? can she have cabed? can we have cabed? can you have cabed? can they have cabed?
V-ing perfect
can I have been cabing? can you have been cabing? can she have been cabing? can we have been cabing? can you have been cabing? can they have been cabing?
Interro-negative form
Simple form
can I not cab? can you not cab? can she not cab? can we not cab? can you not cab? can they not cab?
V-ing form
can I not be cabing? can you not be cabing? can she not be cabing? can we not be cabing? can you not be cabing? can they not be cabing?
Perfect
can I not have cabed? can you not have cabed? can she not have cabed? can we not have cabed? can you not have cabed? can they not have cabed?
V-ing perfect
can I not have been cabing? can you not have been cabing? can she not have been cabing? can we not have been cabing? can you not have been cabing? can they not have been cabing?