English verb conjugation
SHOULD GAIN

Regular verb: gain - gained - gained

Affirmation

Simple form	V-ing form
I should gain you should gain she should gain we should gain you should gain they should gain	I should be gaining you should be gaining she should be gaining we should be gaining you should be gaining they should be gaining
Perfect	V-ing perfect
I should have gained you should have gained she should have gained we should have gained you should have gained they should have gained	I should have been gaining you should have been gaining she should have been gaining we should have been gaining you should have been gaining they should have been gaining

Negation

Simple form	V-ing form
I should not gain you should not gain she should not gain we should not gain you should not gain they should not gain	I should not be gaining you should not be gaining she should not be gaining we should not be gaining you should not be gaining they should not be gaining
Perfect	V-ing perfect
I should not have gained you should not have gained she should not have gained we should not have gained you should not have gained they should not have gained	I should not have been gaining you should not have been gaining she should not have been gaining we should not have been gaining you should not have been gaining they should not have been gaining

Interrogative form

Simple form	V-ing form
should I gain? should you gain? should she gain? should we gain? should you gain? should they gain?	should I be gaining? should you be gaining? should she be gaining? should we be gaining? should you be gaining? should they be gaining?
Perfect	V-ing perfect
should I have gained? should you have gained? should she have gained? should we have gained? should you have gained? should they have gained?	should I have been gaining? should you have been gaining? should she have been gaining? should we have been gaining? should you have been gaining? should they have been gaining?

Interro-negative form

Simple form	V-ing form
should I not gain? should you not gain? should she not gain? should we not gain? should you not gain? should they not gain?	should I not be gaining? should you not be gaining? should she not be gaining? should we not be gaining? should you not be gaining? should they not be gaining?
Perfect	V-ing perfect
should I not have gained? should you not have gained? should she not have gained? should we not have gained? should you not have gained? should they not have gained?	should I not have been gaining? should you not have been gaining? should she not have been gaining? should we not have been gaining? should you not have been gaining? should they not have been gaining?