I can numb you can numb he can numb we can numb you can numb they can numb
V-ing form
I can be numbing you can be numbing he can be numbing we can be numbing you can be numbing they can be numbing
Perfect
I can have numbed you can have numbed he can have numbed we can have numbed you can have numbed they can have numbed
V-ing perfect
I can have been numbing you can have been numbing he can have been numbing we can have been numbing you can have been numbing they can have been numbing
Negation
Simple form
I can't numb you can't numb he can't numb we can't numb you can't numb they can't numb
V-ing form
I can't be numbing you can't be numbing he can't be numbing we can't be numbing you can't be numbing they can't be numbing
Perfect
I can't have numbed you can't have numbed he can't have numbed we can't have numbed you can't have numbed they can't have numbed
V-ing perfect
I can't have been numbing you can't have been numbing he can't have been numbing we can't have been numbing you can't have been numbing they can't have been numbing
Interrogative form
Simple form
can I numb? can you numb? can he numb? can we numb? can you numb? can they numb?
V-ing form
can I be numbing? can you be numbing? can he be numbing? can we be numbing? can you be numbing? can they be numbing?
Perfect
can I have numbed? can you have numbed? can he have numbed? can we have numbed? can you have numbed? can they have numbed?
V-ing perfect
can I have been numbing? can you have been numbing? can he have been numbing? can we have been numbing? can you have been numbing? can they have been numbing?
Interro-negative form
Simple form
can't I numb? can't you numb? can't he numb? can't we numb? can't you numb? can't they numb?
V-ing form
can't I be numbing? can't you be numbing? can't he be numbing? can't we be numbing? can't you be numbing? can't they be numbing?
Perfect
can't I have numbed? can't you have numbed? can't he have numbed? can't we have numbed? can't you have numbed? can't they have numbed?
V-ing perfect
can't I have been numbing? can't you have been numbing? can't he have been numbing? can't we have been numbing? can't you have been numbing? can't they have been numbing?