should sigh
Regular verb: sigh - sighed- sighed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?