English verb conjugation
COULD HEAR

Irregular verb: hear - heard - heard

Affirmation

Simple form	V-ing form
I could hear you could hear she could hear we could hear you could hear they could hear	I could be hearing you could be hearing she could be hearing we could be hearing you could be hearing they could be hearing
Perfect	V-ing perfect
I could have heard you could have heard she 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 she 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
I could not hear you could not hear she could not hear we could not hear you could not hear they could not hear	I could not be hearing you could not be hearing she could not be hearing we could not be hearing you could not be hearing they could not be hearing
Perfect	V-ing perfect
I could not have heard you could not have heard she could not have heard we could not have heard you could not have heard they could not have heard	I could not have been hearing you could not have been hearing she could not have been hearing we could not have been hearing you could not have been hearing they could not have been hearing

Interrogative form

Simple form	V-ing form
could I hear? could you hear? could she hear? could we hear? could you hear? could they hear?	could I be hearing? could you be hearing? could she be hearing? could we be hearing? could you be hearing? could they be hearing?
Perfect	V-ing perfect
could I have heard? could you have heard? could she 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 she 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
could I not hear? could you not hear? could she not hear? could we not hear? could you not hear? could they not hear?	could I not be hearing? could you not be hearing? could she not be hearing? could we not be hearing? could you not be hearing? could they not be hearing?
Perfect	V-ing perfect
could I not have heard? could you not have heard? could she not have heard? could we not have heard? could you not have heard? could they not have heard?	could I not have been hearing? could you not have been hearing? could she not have been hearing? could we not have been hearing? could you not have been hearing? could they not have been hearing?