English verb conjugation
SHOULD DEMONSTRATE

Regular verb: demonstrate - demonstrated - demonstrated

Affirmation

Simple form	V-ing form
I should demonstrate you should demonstrate he should demonstrate we should demonstrate you should demonstrate they should demonstrate	I should be demonstrating you should be demonstrating he should be demonstrating we should be demonstrating you should be demonstrating they should be demonstrating
Perfect	V-ing perfect
I should have demonstrated you should have demonstrated he should have demonstrated we should have demonstrated you should have demonstrated they should have demonstrated	I should have been demonstrating you should have been demonstrating he should have been demonstrating we should have been demonstrating you should have been demonstrating they should have been demonstrating

Negation

Simple form	V-ing form
I should not demonstrate you should not demonstrate he should not demonstrate we should not demonstrate you should not demonstrate they should not demonstrate	I should not be demonstrating you should not be demonstrating he should not be demonstrating we should not be demonstrating you should not be demonstrating they should not be demonstrating
Perfect	V-ing perfect
I should not have demonstrated you should not have demonstrated he should not have demonstrated we should not have demonstrated you should not have demonstrated they should not have demonstrated	I should not have been demonstrating you should not have been demonstrating he should not have been demonstrating we should not have been demonstrating you should not have been demonstrating they should not have been demonstrating

Interrogative form

Simple form	V-ing form
should I demonstrate? should you demonstrate? should he demonstrate? should we demonstrate? should you demonstrate? should they demonstrate?	should I be demonstrating? should you be demonstrating? should he be demonstrating? should we be demonstrating? should you be demonstrating? should they be demonstrating?
Perfect	V-ing perfect
should I have demonstrated? should you have demonstrated? should he have demonstrated? should we have demonstrated? should you have demonstrated? should they have demonstrated?	should I have been demonstrating? should you have been demonstrating? should he have been demonstrating? should we have been demonstrating? should you have been demonstrating? should they have been demonstrating?

Interro-negative form

Simple form	V-ing form
should I not demonstrate? should you not demonstrate? should he not demonstrate? should we not demonstrate? should you not demonstrate? should they not demonstrate?	should I not be demonstrating? should you not be demonstrating? should he not be demonstrating? should we not be demonstrating? should you not be demonstrating? should they not be demonstrating?
Perfect	V-ing perfect
should I not have demonstrated? should you not have demonstrated? should he not have demonstrated? should we not have demonstrated? should you not have demonstrated? should they not have demonstrated?	should I not have been demonstrating? should you not have been demonstrating? should he not have been demonstrating? should we not have been demonstrating? should you not have been demonstrating? should they not have been demonstrating?