could hear
Irregular verb: hear - heard- heard

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could hear
you could hear
he could hear
we could hear
you could hear
they could hear 	I could be hearing
you could be hearing
he could be hearing
we could be hearing
you could be hearing
they could be hearing	I could have heard
you could have heard
he could have heard
we could have heard
you could have heard
they could have heard	I could have been hearing
you could have been hearing
he could have been hearing
we could have been hearing
you could have been hearing
they could have been hearing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't hear
you couldn't hear
he couldn't hear
we couldn't hear
you couldn't hear
they couldn't hear 	I couldn't be hearing
you couldn't be hearing
he couldn't be hearing
we couldn't be hearing
you couldn't be hearing
they couldn't be hearing	I couldn't have heard
you couldn't have heard
he couldn't have heard
we couldn't have heard
you couldn't have heard
they couldn't have heard	I couldn't have been hearing
you couldn't have been hearing
he couldn't have been hearing
we couldn't have been hearing
you couldn't have been hearing
they couldn't have been hearing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I hear?
could you hear?
could he hear?
could we hear?
could you hear?
could they hear? 	could I be hearing?
could you be hearing?
could he be hearing?
could we be hearing?
could you be hearing?
could they be hearing? 	could I have heard?
could you have heard?
could he have heard?
could we have heard?
could you have heard?
could they have heard? 	could I have been hearing?
could you have been hearing?
could he have been hearing?
could we have been hearing?
could you have been hearing?
could they have been hearing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I hear?
couldn't you hear?
couldn't he hear?
couldn't we hear?
couldn't you hear?
couldn't they hear? 	couldn't I be hearing?
couldn't you be hearing?
couldn't he be hearing?
couldn't we be hearing?
couldn't you be hearing?
couldn't they be hearing? 	couldn't I have heard?
couldn't you have heard?
couldn't he have heard?
couldn't we have heard?
couldn't you have heard?
couldn't they have heard? 	couldn't I have been hearing?
couldn't you have been hearing?
couldn't he have been hearing?
couldn't we have been hearing?
couldn't you have been hearing?
couldn't they have been hearing?