English verb conjugation
SHOULD RET

Regular verb: ret - retted - retted

Affirmation

Simple form	V-ing form
I should ret you should ret he should ret we should ret you should ret they should ret	I should be retting you should be retting he should be retting we should be retting you should be retting they should be retting
Perfect	V-ing perfect
I should have retted you should have retted he should have retted we should have retted you should have retted they should have retted	I should have been retting you should have been retting he should have been retting we should have been retting you should have been retting they should have been retting

Negation

Simple form	V-ing form
I should not ret you should not ret he should not ret we should not ret you should not ret they should not ret	I should not be retting you should not be retting he should not be retting we should not be retting you should not be retting they should not be retting
Perfect	V-ing perfect
I should not have retted you should not have retted he should not have retted we should not have retted you should not have retted they should not have retted	I should not have been retting you should not have been retting he should not have been retting we should not have been retting you should not have been retting they should not have been retting

Interrogative form

Simple form	V-ing form
should I ret? should you ret? should he ret? should we ret? should you ret? should they ret?	should I be retting? should you be retting? should he be retting? should we be retting? should you be retting? should they be retting?
Perfect	V-ing perfect
should I have retted? should you have retted? should he have retted? should we have retted? should you have retted? should they have retted?	should I have been retting? should you have been retting? should he have been retting? should we have been retting? should you have been retting? should they have been retting?

Interro-negative form

Simple form	V-ing form
should I not ret? should you not ret? should he not ret? should we not ret? should you not ret? should they not ret?	should I not be retting? should you not be retting? should he not be retting? should we not be retting? should you not be retting? should they not be retting?
Perfect	V-ing perfect
should I not have retted? should you not have retted? should he not have retted? should we not have retted? should you not have retted? should they not have retted?	should I not have been retting? should you not have been retting? should he not have been retting? should we not have been retting? should you not have been retting? should they not have been retting?