could show
Irregular verb: show - showed- shown

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could show
you could show
she could show
we could show
you could show
they could show 	I could be showing
you could be showing
she could be showing
we could be showing
you could be showing
they could be showing	I could have shown
you could have shown
she could have shown
we could have shown
you could have shown
they could have shown	I could have been showing
you could have been showing
she could have been showing
we could have been showing
you could have been showing
they could have been showing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not show
you could not show
she could not show
we could not show
you could not show
they could not show 	I could not be showing
you could not be showing
she could not be showing
we could not be showing
you could not be showing
they could not be showing	I could not have shown
you could not have shown
she could not have shown
we could not have shown
you could not have shown
they could not have shown	I could not have been showing
you could not have been showing
she could not have been showing
we could not have been showing
you could not have been showing
they could not have been showing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I show?
could you show?
could she show?
could we show?
could you show?
could they show? 	could I be showing?
could you be showing?
could she be showing?
could we be showing?
could you be showing?
could they be showing? 	could I have shown?
could you have shown?
could she have shown?
could we have shown?
could you have shown?
could they have shown? 	could I have been showing?
could you have been showing?
could she have been showing?
could we have been showing?
could you have been showing?
could they have been showing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not show?
could you not show?
could she not show?
could we not show?
could you not show?
could they not show? 	could I not be showing?
could you not be showing?
could she not be showing?
could we not be showing?
could you not be showing?
could they not be showing? 	could I not have shown?
could you not have shown?
could she not have shown?
could we not have shown?
could you not have shown?
could they not have shown? 	could I not have been showing?
could you not have been showing?
could she not have been showing?
could we not have been showing?
could you not have been showing?
could they not have been showing?