I can benumb you can benumb she can benumb we can benumb you can benumb they can benumb
V-ing form
I can be benumbing you can be benumbing she can be benumbing we can be benumbing you can be benumbing they can be benumbing
Perfect
I can have benumbed you can have benumbed she can have benumbed we can have benumbed you can have benumbed they can have benumbed
V-ing perfect
I can have been benumbing you can have been benumbing she can have been benumbing we can have been benumbing you can have been benumbing they can have been benumbing
Negation
Simple form
I can't benumb you can't benumb she can't benumb we can't benumb you can't benumb they can't benumb
V-ing form
I can't be benumbing you can't be benumbing she can't be benumbing we can't be benumbing you can't be benumbing they can't be benumbing
Perfect
I can't have benumbed you can't have benumbed she can't have benumbed we can't have benumbed you can't have benumbed they can't have benumbed
V-ing perfect
I can't have been benumbing you can't have been benumbing she can't have been benumbing we can't have been benumbing you can't have been benumbing they can't have been benumbing
Interrogative form
Simple form
can I benumb? can you benumb? can she benumb? can we benumb? can you benumb? can they benumb?
V-ing form
can I be benumbing? can you be benumbing? can she be benumbing? can we be benumbing? can you be benumbing? can they be benumbing?
Perfect
can I have benumbed? can you have benumbed? can she have benumbed? can we have benumbed? can you have benumbed? can they have benumbed?
V-ing perfect
can I have been benumbing? can you have been benumbing? can she have been benumbing? can we have been benumbing? can you have been benumbing? can they have been benumbing?
Interro-negative form
Simple form
can't I benumb? can't you benumb? can't she benumb? can't we benumb? can't you benumb? can't they benumb?
V-ing form
can't I be benumbing? can't you be benumbing? can't she be benumbing? can't we be benumbing? can't you be benumbing? can't they be benumbing?
Perfect
can't I have benumbed? can't you have benumbed? can't she have benumbed? can't we have benumbed? can't you have benumbed? can't they have benumbed?
V-ing perfect
can't I have been benumbing? can't you have been benumbing? can't she have been benumbing? can't we have been benumbing? can't you have been benumbing? can't they have been benumbing?