English verb conjugation
SHOULD PREFER

Regular verb: prefer - preferred - preferred

Affirmation

Simple form	V-ing form
I should prefer you should prefer she should prefer we should prefer you should prefer they should prefer	I should be preferring you should be preferring she should be preferring we should be preferring you should be preferring they should be preferring
Perfect	V-ing perfect
I should have preferred you should have preferred she should have preferred we should have preferred you should have preferred they should have preferred	I should have been preferring you should have been preferring she should have been preferring we should have been preferring you should have been preferring they should have been preferring

Negation

Simple form	V-ing form
I should not prefer you should not prefer she should not prefer we should not prefer you should not prefer they should not prefer	I should not be preferring you should not be preferring she should not be preferring we should not be preferring you should not be preferring they should not be preferring
Perfect	V-ing perfect
I should not have preferred you should not have preferred she should not have preferred we should not have preferred you should not have preferred they should not have preferred	I should not have been preferring you should not have been preferring she should not have been preferring we should not have been preferring you should not have been preferring they should not have been preferring

Interrogative form

Simple form	V-ing form
should I prefer? should you prefer? should she prefer? should we prefer? should you prefer? should they prefer?	should I be preferring? should you be preferring? should she be preferring? should we be preferring? should you be preferring? should they be preferring?
Perfect	V-ing perfect
should I have preferred? should you have preferred? should she have preferred? should we have preferred? should you have preferred? should they have preferred?	should I have been preferring? should you have been preferring? should she have been preferring? should we have been preferring? should you have been preferring? should they have been preferring?

Interro-negative form

Simple form	V-ing form
should I not prefer? should you not prefer? should she not prefer? should we not prefer? should you not prefer? should they not prefer?	should I not be preferring? should you not be preferring? should she not be preferring? should we not be preferring? should you not be preferring? should they not be preferring?
Perfect	V-ing perfect
should I not have preferred? should you not have preferred? should she not have preferred? should we not have preferred? should you not have preferred? should they not have preferred?	should I not have been preferring? should you not have been preferring? should she not have been preferring? should we not have been preferring? should you not have been preferring? should they not have been preferring?