English verb conjugation
SHOULD RAREFY

Regular verb: rarefy - rarefied - rarefied

Affirmation

Simple form	V-ing form
I'd rarefy you'd rarefy he'd rarefy we'd rarefy you'd rarefy they'd rarefy	I'd be rarefying you'd be rarefying he'd be rarefying we'd be rarefying you'd be rarefying they'd be rarefying
Perfect	V-ing perfect
I should've rarefied you should've rarefied he should've rarefied we should've rarefied you should've rarefied they should've rarefied	I should've been rarefying you should've been rarefying he should've been rarefying we should've been rarefying you should've been rarefying they should've been rarefying

Negation

Simple form	V-ing form
I shouldn't rarefy you shouldn't rarefy he shouldn't rarefy we shouldn't rarefy you shouldn't rarefy they shouldn't rarefy	I shouldn't be rarefying you shouldn't be rarefying he shouldn't be rarefying we shouldn't be rarefying you shouldn't be rarefying they shouldn't be rarefying
Perfect	V-ing perfect
I shouldn't have rarefied you shouldn't have rarefied he shouldn't have rarefied we shouldn't have rarefied you shouldn't have rarefied they shouldn't have rarefied	I shouldn't have been rarefying you shouldn't have been rarefying he shouldn't have been rarefying we shouldn't have been rarefying you shouldn't have been rarefying they shouldn't have been rarefying

Interrogative form

Simple form	V-ing form
should I rarefy? should you rarefy? should he rarefy? should we rarefy? should you rarefy? should they rarefy?	should I be rarefying? should you be rarefying? should he be rarefying? should we be rarefying? should you be rarefying? should they be rarefying?
Perfect	V-ing perfect
should I have rarefied? should you have rarefied? should he have rarefied? should we have rarefied? should you have rarefied? should they have rarefied?	should I have been rarefying? should you have been rarefying? should he have been rarefying? should we have been rarefying? should you have been rarefying? should they have been rarefying?

Interro-negative form

Simple form	V-ing form
shouldn't I rarefy? shouldn't you rarefy? shouldn't he rarefy? shouldn't we rarefy? shouldn't you rarefy? shouldn't they rarefy?	shouldn't I be rarefying? shouldn't you be rarefying? shouldn't he be rarefying? shouldn't we be rarefying? shouldn't you be rarefying? shouldn't they be rarefying?
Perfect	V-ing perfect
shouldn't I have rarefied? shouldn't you have rarefied? shouldn't he have rarefied? shouldn't we have rarefied? shouldn't you have rarefied? shouldn't they have rarefied?	shouldn't I have been rarefying? shouldn't you have been rarefying? shouldn't he have been rarefying? shouldn't we have been rarefying? shouldn't you have been rarefying? shouldn't they have been rarefying?