English verb conjugation
SHOULD SPRAIN

Regular verb: sprain - sprained - sprained

Affirmation

Simple form	V-ing form
I should sprain you should sprain he should sprain we should sprain you should sprain they should sprain	I should be spraining you should be spraining he should be spraining we should be spraining you should be spraining they should be spraining
Perfect	V-ing perfect
I should have sprained you should have sprained he should have sprained we should have sprained you should have sprained they should have sprained	I should have been spraining you should have been spraining he should have been spraining we should have been spraining you should have been spraining they should have been spraining

Negation

Simple form	V-ing form
I should not sprain you should not sprain he should not sprain we should not sprain you should not sprain they should not sprain	I should not be spraining you should not be spraining he should not be spraining we should not be spraining you should not be spraining they should not be spraining
Perfect	V-ing perfect
I should not have sprained you should not have sprained he should not have sprained we should not have sprained you should not have sprained they should not have sprained	I should not have been spraining you should not have been spraining he should not have been spraining we should not have been spraining you should not have been spraining they should not have been spraining

Interrogative form

Simple form	V-ing form
should I sprain? should you sprain? should he sprain? should we sprain? should you sprain? should they sprain?	should I be spraining? should you be spraining? should he be spraining? should we be spraining? should you be spraining? should they be spraining?
Perfect	V-ing perfect
should I have sprained? should you have sprained? should he have sprained? should we have sprained? should you have sprained? should they have sprained?	should I have been spraining? should you have been spraining? should he have been spraining? should we have been spraining? should you have been spraining? should they have been spraining?

Interro-negative form

Simple form	V-ing form
should I not sprain? should you not sprain? should he not sprain? should we not sprain? should you not sprain? should they not sprain?	should I not be spraining? should you not be spraining? should he not be spraining? should we not be spraining? should you not be spraining? should they not be spraining?
Perfect	V-ing perfect
should I not have sprained? should you not have sprained? should he not have sprained? should we not have sprained? should you not have sprained? should they not have sprained?	should I not have been spraining? should you not have been spraining? should he not have been spraining? should we not have been spraining? should you not have been spraining? should they not have been spraining?