English verb conjugation
SHOULD SIGH

Regular verb: sigh - sighed - sighed

Affirmation

Simple form	V-ing form
I should sigh you should sigh he should sigh we should sigh you should sigh they should sigh	I should be sighing you should be sighing he should be sighing we should be sighing you should be sighing they should be sighing
Perfect	V-ing perfect
I should have sighed you should have sighed he should have sighed we should have sighed you should have sighed they should have sighed	I should have been sighing you should have been sighing he should have been sighing we should have been sighing you should have been sighing they should have been sighing

Negation

Simple form	V-ing form
I should not sigh you should not sigh he should not sigh we should not sigh you should not sigh they should not sigh	I should not be sighing you should not be sighing he should not be sighing we should not be sighing you should not be sighing they should not be sighing
Perfect	V-ing perfect
I should not have sighed you should not have sighed he should not have sighed we should not have sighed you should not have sighed they should not have sighed	I should not have been sighing you should not have been sighing he should not have been sighing we should not have been sighing you should not have been sighing they should not have been sighing

Interrogative form

Simple form	V-ing form
should I sigh? should you sigh? should he sigh? should we sigh? should you sigh? should they sigh?	should I be sighing? should you be sighing? should he be sighing? should we be sighing? should you be sighing? should they be sighing?
Perfect	V-ing perfect
should I have sighed? should you have sighed? should he have sighed? should we have sighed? should you have sighed? should they have sighed?	should I have been sighing? should you have been sighing? should he have been sighing? should we have been sighing? should you have been sighing? should they have been sighing?

Interro-negative form

Simple form	V-ing form
should I not sigh? should you not sigh? should he not sigh? should we not sigh? should you not sigh? should they not sigh?	should I not be sighing? should you not be sighing? should he not be sighing? should we not be sighing? should you not be sighing? should they not be sighing?
Perfect	V-ing perfect
should I not have sighed? should you not have sighed? should he not have sighed? should we not have sighed? should you not have sighed? should they not have sighed?	should I not have been sighing? should you not have been sighing? should he not have been sighing? should we not have been sighing? should you not have been sighing? should they not have been sighing?