should diagram
Regular verb: diagram - diagramed- diagramed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should diagram
you should diagram
he should diagram
we should diagram
you should diagram
they should diagram 	I should be diagraming
you should be diagraming
he should be diagraming
we should be diagraming
you should be diagraming
they should be diagraming	I should have diagramed
you should have diagramed
he should have diagramed
we should have diagramed
you should have diagramed
they should have diagramed	I should have been diagraming
you should have been diagraming
he should have been diagraming
we should have been diagraming
you should have been diagraming
they should have been diagraming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not diagram
you should not diagram
he should not diagram
we should not diagram
you should not diagram
they should not diagram 	I should not be diagraming
you should not be diagraming
he should not be diagraming
we should not be diagraming
you should not be diagraming
they should not be diagraming	I should not have diagramed
you should not have diagramed
he should not have diagramed
we should not have diagramed
you should not have diagramed
they should not have diagramed	I should not have been diagraming
you should not have been diagraming
he should not have been diagraming
we should not have been diagraming
you should not have been diagraming
they should not have been diagraming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I diagram?
should you diagram?
should he diagram?
should we diagram?
should you diagram?
should they diagram? 	should I be diagraming?
should you be diagraming?
should he be diagraming?
should we be diagraming?
should you be diagraming?
should they be diagraming? 	should I have diagramed?
should you have diagramed?
should he have diagramed?
should we have diagramed?
should you have diagramed?
should they have diagramed? 	should I have been diagraming?
should you have been diagraming?
should he have been diagraming?
should we have been diagraming?
should you have been diagraming?
should they have been diagraming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not diagram?
should you not diagram?
should he not diagram?
should we not diagram?
should you not diagram?
should they not diagram? 	should I not be diagraming?
should you not be diagraming?
should he not be diagraming?
should we not be diagraming?
should you not be diagraming?
should they not be diagraming? 	should I not have diagramed?
should you not have diagramed?
should he not have diagramed?
should we not have diagramed?
should you not have diagramed?
should they not have diagramed? 	should I not have been diagraming?
should you not have been diagraming?
should he not have been diagraming?
should we not have been diagraming?
should you not have been diagraming?
should they not have been diagraming?