should rarefy
Regular verb: rarefy - rarefied- rarefied

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