English verb conjugation
SHOULD MAR

Regular verb: mar - marred - marred

Affirmation

Simple form	V-ing form
I should mar you should mar he should mar we should mar you should mar they should mar	I should be marring you should be marring he should be marring we should be marring you should be marring they should be marring
Perfect	V-ing perfect
I should have marred you should have marred he should have marred we should have marred you should have marred they should have marred	I should have been marring you should have been marring he should have been marring we should have been marring you should have been marring they should have been marring

Negation

Simple form	V-ing form
I should not mar you should not mar he should not mar we should not mar you should not mar they should not mar	I should not be marring you should not be marring he should not be marring we should not be marring you should not be marring they should not be marring
Perfect	V-ing perfect
I should not have marred you should not have marred he should not have marred we should not have marred you should not have marred they should not have marred	I should not have been marring you should not have been marring he should not have been marring we should not have been marring you should not have been marring they should not have been marring

Interrogative form

Simple form	V-ing form
should I mar? should you mar? should he mar? should we mar? should you mar? should they mar?	should I be marring? should you be marring? should he be marring? should we be marring? should you be marring? should they be marring?
Perfect	V-ing perfect
should I have marred? should you have marred? should he have marred? should we have marred? should you have marred? should they have marred?	should I have been marring? should you have been marring? should he have been marring? should we have been marring? should you have been marring? should they have been marring?

Interro-negative form

Simple form	V-ing form
should I not mar? should you not mar? should he not mar? should we not mar? should you not mar? should they not mar?	should I not be marring? should you not be marring? should he not be marring? should we not be marring? should you not be marring? should they not be marring?
Perfect	V-ing perfect
should I not have marred? should you not have marred? should he not have marred? should we not have marred? should you not have marred? should they not have marred?	should I not have been marring? should you not have been marring? should he not have been marring? should we not have been marring? should you not have been marring? should they not have been marring?