English verb conjugation
SHOULD DOUBLE

Regular verb: double - doubled - doubled

Affirmation

Simple form	V-ing form
I should double you should double he should double we should double you should double they should double	I should be doubling you should be doubling he should be doubling we should be doubling you should be doubling they should be doubling
Perfect	V-ing perfect
I should have doubled you should have doubled he should have doubled we should have doubled you should have doubled they should have doubled	I should have been doubling you should have been doubling he should have been doubling we should have been doubling you should have been doubling they should have been doubling

Negation

Simple form	V-ing form
I should not double you should not double he should not double we should not double you should not double they should not double	I should not be doubling you should not be doubling he should not be doubling we should not be doubling you should not be doubling they should not be doubling
Perfect	V-ing perfect
I should not have doubled you should not have doubled he should not have doubled we should not have doubled you should not have doubled they should not have doubled	I should not have been doubling you should not have been doubling he should not have been doubling we should not have been doubling you should not have been doubling they should not have been doubling

Interrogative form

Simple form	V-ing form
should I double? should you double? should he double? should we double? should you double? should they double?	should I be doubling? should you be doubling? should he be doubling? should we be doubling? should you be doubling? should they be doubling?
Perfect	V-ing perfect
should I have doubled? should you have doubled? should he have doubled? should we have doubled? should you have doubled? should they have doubled?	should I have been doubling? should you have been doubling? should he have been doubling? should we have been doubling? should you have been doubling? should they have been doubling?

Interro-negative form

Simple form	V-ing form
should I not double? should you not double? should he not double? should we not double? should you not double? should they not double?	should I not be doubling? should you not be doubling? should he not be doubling? should we not be doubling? should you not be doubling? should they not be doubling?
Perfect	V-ing perfect
should I not have doubled? should you not have doubled? should he not have doubled? should we not have doubled? should you not have doubled? should they not have doubled?	should I not have been doubling? should you not have been doubling? should he not have been doubling? should we not have been doubling? should you not have been doubling? should they not have been doubling?