could numb
Regular verb: numb - numbed- numbed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could numb
you could numb
he could numb
we could numb
you could numb
they could numb 	I could be numbing
you could be numbing
he could be numbing
we could be numbing
you could be numbing
they could be numbing	I could have numbed
you could have numbed
he could have numbed
we could have numbed
you could have numbed
they could have numbed	I could have been numbing
you could have been numbing
he could have been numbing
we could have been numbing
you could have been numbing
they could have been numbing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't numb
you couldn't numb
he couldn't numb
we couldn't numb
you couldn't numb
they couldn't numb 	I couldn't be numbing
you couldn't be numbing
he couldn't be numbing
we couldn't be numbing
you couldn't be numbing
they couldn't be numbing	I couldn't have numbed
you couldn't have numbed
he couldn't have numbed
we couldn't have numbed
you couldn't have numbed
they couldn't have numbed	I couldn't have been numbing
you couldn't have been numbing
he couldn't have been numbing
we couldn't have been numbing
you couldn't have been numbing
they couldn't have been numbing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I numb?
could you numb?
could he numb?
could we numb?
could you numb?
could they numb? 	could I be numbing?
could you be numbing?
could he be numbing?
could we be numbing?
could you be numbing?
could they be numbing? 	could I have numbed?
could you have numbed?
could he have numbed?
could we have numbed?
could you have numbed?
could they have numbed? 	could I have been numbing?
could you have been numbing?
could he have been numbing?
could we have been numbing?
could you have been numbing?
could they have been numbing? 	

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