should behave
Regular verb: behave - behaved- behaved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should behave
you should behave
she should behave
we should behave
you should behave
they should behave 	I should be behaving
you should be behaving
she should be behaving
we should be behaving
you should be behaving
they should be behaving	I should have behaved
you should have behaved
she should have behaved
we should have behaved
you should have behaved
they should have behaved	I should have been behaving
you should have been behaving
she should have been behaving
we should have been behaving
you should have been behaving
they should have been behaving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not behave
you should not behave
she should not behave
we should not behave
you should not behave
they should not behave 	I should not be behaving
you should not be behaving
she should not be behaving
we should not be behaving
you should not be behaving
they should not be behaving	I should not have behaved
you should not have behaved
she should not have behaved
we should not have behaved
you should not have behaved
they should not have behaved	I should not have been behaving
you should not have been behaving
she should not have been behaving
we should not have been behaving
you should not have been behaving
they should not have been behaving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I behave?
should you behave?
should she behave?
should we behave?
should you behave?
should they behave? 	should I be behaving?
should you be behaving?
should she be behaving?
should we be behaving?
should you be behaving?
should they be behaving? 	should I have behaved?
should you have behaved?
should she have behaved?
should we have behaved?
should you have behaved?
should they have behaved? 	should I have been behaving?
should you have been behaving?
should she have been behaving?
should we have been behaving?
should you have been behaving?
should they have been behaving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not behave?
should you not behave?
should she not behave?
should we not behave?
should you not behave?
should they not behave? 	should I not be behaving?
should you not be behaving?
should she not be behaving?
should we not be behaving?
should you not be behaving?
should they not be behaving? 	should I not have behaved?
should you not have behaved?
should she not have behaved?
should we not have behaved?
should you not have behaved?
should they not have behaved? 	should I not have been behaving?
should you not have been behaving?
should she not have been behaving?
should we not have been behaving?
should you not have been behaving?
should they not have been behaving?