English verb conjugation
SHOULD REFRAIN

Regular verb: refrain - refrained - refrained

Affirmation

Simple form	V-ing form
I should refrain you should refrain he should refrain we should refrain you should refrain they should refrain	I should be refraining you should be refraining he should be refraining we should be refraining you should be refraining they should be refraining
Perfect	V-ing perfect
I should have refrained you should have refrained he should have refrained we should have refrained you should have refrained they should have refrained	I should have been refraining you should have been refraining he should have been refraining we should have been refraining you should have been refraining they should have been refraining

Negation

Simple form	V-ing form
I should not refrain you should not refrain he should not refrain we should not refrain you should not refrain they should not refrain	I should not be refraining you should not be refraining he should not be refraining we should not be refraining you should not be refraining they should not be refraining
Perfect	V-ing perfect
I should not have refrained you should not have refrained he should not have refrained we should not have refrained you should not have refrained they should not have refrained	I should not have been refraining you should not have been refraining he should not have been refraining we should not have been refraining you should not have been refraining they should not have been refraining

Interrogative form

Simple form	V-ing form
should I refrain? should you refrain? should he refrain? should we refrain? should you refrain? should they refrain?	should I be refraining? should you be refraining? should he be refraining? should we be refraining? should you be refraining? should they be refraining?
Perfect	V-ing perfect
should I have refrained? should you have refrained? should he have refrained? should we have refrained? should you have refrained? should they have refrained?	should I have been refraining? should you have been refraining? should he have been refraining? should we have been refraining? should you have been refraining? should they have been refraining?

Interro-negative form

Simple form	V-ing form
should I not refrain? should you not refrain? should he not refrain? should we not refrain? should you not refrain? should they not refrain?	should I not be refraining? should you not be refraining? should he not be refraining? should we not be refraining? should you not be refraining? should they not be refraining?
Perfect	V-ing perfect
should I not have refrained? should you not have refrained? should he not have refrained? should we not have refrained? should you not have refrained? should they not have refrained?	should I not have been refraining? should you not have been refraining? should he not have been refraining? should we not have been refraining? should you not have been refraining? should they not have been refraining?