English verb conjugation
SHOULD HEIGHTEN

Regular verb: heighten - heightened - heightened

Affirmation

Simple form	V-ing form
I should heighten you should heighten she should heighten we should heighten you should heighten they should heighten	I should be heightening you should be heightening she should be heightening we should be heightening you should be heightening they should be heightening
Perfect	V-ing perfect
I should have heightened you should have heightened she should have heightened we should have heightened you should have heightened they should have heightened	I should have been heightening you should have been heightening she should have been heightening we should have been heightening you should have been heightening they should have been heightening

Negation

Simple form	V-ing form
I should not heighten you should not heighten she should not heighten we should not heighten you should not heighten they should not heighten	I should not be heightening you should not be heightening she should not be heightening we should not be heightening you should not be heightening they should not be heightening
Perfect	V-ing perfect
I should not have heightened you should not have heightened she should not have heightened we should not have heightened you should not have heightened they should not have heightened	I should not have been heightening you should not have been heightening she should not have been heightening we should not have been heightening you should not have been heightening they should not have been heightening

Interrogative form

Simple form	V-ing form
should I heighten? should you heighten? should she heighten? should we heighten? should you heighten? should they heighten?	should I be heightening? should you be heightening? should she be heightening? should we be heightening? should you be heightening? should they be heightening?
Perfect	V-ing perfect
should I have heightened? should you have heightened? should she have heightened? should we have heightened? should you have heightened? should they have heightened?	should I have been heightening? should you have been heightening? should she have been heightening? should we have been heightening? should you have been heightening? should they have been heightening?

Interro-negative form

Simple form	V-ing form
should I not heighten? should you not heighten? should she not heighten? should we not heighten? should you not heighten? should they not heighten?	should I not be heightening? should you not be heightening? should she not be heightening? should we not be heightening? should you not be heightening? should they not be heightening?
Perfect	V-ing perfect
should I not have heightened? should you not have heightened? should she not have heightened? should we not have heightened? should you not have heightened? should they not have heightened?	should I not have been heightening? should you not have been heightening? should she not have been heightening? should we not have been heightening? should you not have been heightening? should they not have been heightening?