should expound
Regular verb: expound - expounded- expounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should expound
you should expound
he should expound
we should expound
you should expound
they should expound 	I should be expounding
you should be expounding
he should be expounding
we should be expounding
you should be expounding
they should be expounding	I should have expounded
you should have expounded
he should have expounded
we should have expounded
you should have expounded
they should have expounded	I should have been expounding
you should have been expounding
he should have been expounding
we should have been expounding
you should have been expounding
they should have been expounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not expound
you should not expound
he should not expound
we should not expound
you should not expound
they should not expound 	I should not be expounding
you should not be expounding
he should not be expounding
we should not be expounding
you should not be expounding
they should not be expounding	I should not have expounded
you should not have expounded
he should not have expounded
we should not have expounded
you should not have expounded
they should not have expounded	I should not have been expounding
you should not have been expounding
he should not have been expounding
we should not have been expounding
you should not have been expounding
they should not have been expounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I expound?
should you expound?
should he expound?
should we expound?
should you expound?
should they expound? 	should I be expounding?
should you be expounding?
should he be expounding?
should we be expounding?
should you be expounding?
should they be expounding? 	should I have expounded?
should you have expounded?
should he have expounded?
should we have expounded?
should you have expounded?
should they have expounded? 	should I have been expounding?
should you have been expounding?
should he have been expounding?
should we have been expounding?
should you have been expounding?
should they have been expounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not expound?
should you not expound?
should he not expound?
should we not expound?
should you not expound?
should they not expound? 	should I not be expounding?
should you not be expounding?
should he not be expounding?
should we not be expounding?
should you not be expounding?
should they not be expounding? 	should I not have expounded?
should you not have expounded?
should he not have expounded?
should we not have expounded?
should you not have expounded?
should they not have expounded? 	should I not have been expounding?
should you not have been expounding?
should he not have been expounding?
should we not have been expounding?
should you not have been expounding?
should they not have been expounding?