English verb conjugation
SHOULD LISTEN

Regular verb: listen - listened - listened

Affirmation

Simple form	V-ing form
I should listen you should listen she should listen we should listen you should listen they should listen	I should be listening you should be listening she should be listening we should be listening you should be listening they should be listening
Perfect	V-ing perfect
I should have listened you should have listened she should have listened we should have listened you should have listened they should have listened	I should have been listening you should have been listening she should have been listening we should have been listening you should have been listening they should have been listening

Negation

Simple form	V-ing form
I should not listen you should not listen she should not listen we should not listen you should not listen they should not listen	I should not be listening you should not be listening she should not be listening we should not be listening you should not be listening they should not be listening
Perfect	V-ing perfect
I should not have listened you should not have listened she should not have listened we should not have listened you should not have listened they should not have listened	I should not have been listening you should not have been listening she should not have been listening we should not have been listening you should not have been listening they should not have been listening

Interrogative form

Simple form	V-ing form
should I listen? should you listen? should she listen? should we listen? should you listen? should they listen?	should I be listening? should you be listening? should she be listening? should we be listening? should you be listening? should they be listening?
Perfect	V-ing perfect
should I have listened? should you have listened? should she have listened? should we have listened? should you have listened? should they have listened?	should I have been listening? should you have been listening? should she have been listening? should we have been listening? should you have been listening? should they have been listening?

Interro-negative form

Simple form	V-ing form
should I not listen? should you not listen? should she not listen? should we not listen? should you not listen? should they not listen?	should I not be listening? should you not be listening? should she not be listening? should we not be listening? should you not be listening? should they not be listening?
Perfect	V-ing perfect
should I not have listened? should you not have listened? should she not have listened? should we not have listened? should you not have listened? should they not have listened?	should I not have been listening? should you not have been listening? should she not have been listening? should we not have been listening? should you not have been listening? should they not have been listening?