English verb conjugation
SHOULD REGISTER

Regular verb: register - registered - registered

Affirmation

Simple form	V-ing form
I should register you should register she should register we should register you should register they should register	I should be registering you should be registering she should be registering we should be registering you should be registering they should be registering
Perfect	V-ing perfect
I should have registered you should have registered she should have registered we should have registered you should have registered they should have registered	I should have been registering you should have been registering she should have been registering we should have been registering you should have been registering they should have been registering

Negation

Simple form	V-ing form
I should not register you should not register she should not register we should not register you should not register they should not register	I should not be registering you should not be registering she should not be registering we should not be registering you should not be registering they should not be registering
Perfect	V-ing perfect
I should not have registered you should not have registered she should not have registered we should not have registered you should not have registered they should not have registered	I should not have been registering you should not have been registering she should not have been registering we should not have been registering you should not have been registering they should not have been registering

Interrogative form

Simple form	V-ing form
should I register? should you register? should she register? should we register? should you register? should they register?	should I be registering? should you be registering? should she be registering? should we be registering? should you be registering? should they be registering?
Perfect	V-ing perfect
should I have registered? should you have registered? should she have registered? should we have registered? should you have registered? should they have registered?	should I have been registering? should you have been registering? should she have been registering? should we have been registering? should you have been registering? should they have been registering?

Interro-negative form

Simple form	V-ing form
should I not register? should you not register? should she not register? should we not register? should you not register? should they not register?	should I not be registering? should you not be registering? should she not be registering? should we not be registering? should you not be registering? should they not be registering?
Perfect	V-ing perfect
should I not have registered? should you not have registered? should she not have registered? should we not have registered? should you not have registered? should they not have registered?	should I not have been registering? should you not have been registering? should she not have been registering? should we not have been registering? should you not have been registering? should they not have been registering?