should pertain
Regular verb: pertain - pertained- pertained

Affirmation 	
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I should pertain
you should pertain
he should pertain
we should pertain
you should pertain
they should pertain 	I should be pertaining
you should be pertaining
he should be pertaining
we should be pertaining
you should be pertaining
they should be pertaining	I should have pertained
you should have pertained
he should have pertained
we should have pertained
you should have pertained
they should have pertained	I should have been pertaining
you should have been pertaining
he should have been pertaining
we should have been pertaining
you should have been pertaining
they should have been pertaining	

Negation 	
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I should not pertain
you should not pertain
he should not pertain
we should not pertain
you should not pertain
they should not pertain 	I should not be pertaining
you should not be pertaining
he should not be pertaining
we should not be pertaining
you should not be pertaining
they should not be pertaining	I should not have pertained
you should not have pertained
he should not have pertained
we should not have pertained
you should not have pertained
they should not have pertained	I should not have been pertaining
you should not have been pertaining
he should not have been pertaining
we should not have been pertaining
you should not have been pertaining
they should not have been pertaining	

Interrogative form 	
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should I pertain?
should you pertain?
should he pertain?
should we pertain?
should you pertain?
should they pertain? 	should I be pertaining?
should you be pertaining?
should he be pertaining?
should we be pertaining?
should you be pertaining?
should they be pertaining? 	should I have pertained?
should you have pertained?
should he have pertained?
should we have pertained?
should you have pertained?
should they have pertained? 	should I have been pertaining?
should you have been pertaining?
should he have been pertaining?
should we have been pertaining?
should you have been pertaining?
should they have been pertaining? 	

Interro-negative form 	
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should I not pertain?
should you not pertain?
should he not pertain?
should we not pertain?
should you not pertain?
should they not pertain? 	should I not be pertaining?
should you not be pertaining?
should he not be pertaining?
should we not be pertaining?
should you not be pertaining?
should they not be pertaining? 	should I not have pertained?
should you not have pertained?
should he not have pertained?
should we not have pertained?
should you not have pertained?
should they not have pertained? 	should I not have been pertaining?
should you not have been pertaining?
should he not have been pertaining?
should we not have been pertaining?
should you not have been pertaining?
should they not have been pertaining?