should prebill
Verbo regular: prebill - prebilled- prebilled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should prebill
you should prebill
he should prebill
we should prebill
you should prebill
they should prebill 	I should be prebilling
you should be prebilling
he should be prebilling
we should be prebilling
you should be prebilling
they should be prebilling	I should have prebilled
you should have prebilled
he should have prebilled
we should have prebilled
you should have prebilled
they should have prebilled	I should have been prebilling
you should have been prebilling
he should have been prebilling
we should have been prebilling
you should have been prebilling
they should have been prebilling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not prebill
you should not prebill
he should not prebill
we should not prebill
you should not prebill
they should not prebill 	I should not be prebilling
you should not be prebilling
he should not be prebilling
we should not be prebilling
you should not be prebilling
they should not be prebilling	I should not have prebilled
you should not have prebilled
he should not have prebilled
we should not have prebilled
you should not have prebilled
they should not have prebilled	I should not have been prebilling
you should not have been prebilling
he should not have been prebilling
we should not have been prebilling
you should not have been prebilling
they should not have been prebilling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I prebill?
should you prebill?
should he prebill?
should we prebill?
should you prebill?
should they prebill? 	should I be prebilling?
should you be prebilling?
should he be prebilling?
should we be prebilling?
should you be prebilling?
should they be prebilling? 	should I have prebilled?
should you have prebilled?
should he have prebilled?
should we have prebilled?
should you have prebilled?
should they have prebilled? 	should I have been prebilling?
should you have been prebilling?
should he have been prebilling?
should we have been prebilling?
should you have been prebilling?
should they have been prebilling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not prebill?
should you not prebill?
should he not prebill?
should we not prebill?
should you not prebill?
should they not prebill? 	should I not be prebilling?
should you not be prebilling?
should he not be prebilling?
should we not be prebilling?
should you not be prebilling?
should they not be prebilling? 	should I not have prebilled?
should you not have prebilled?
should he not have prebilled?
should we not have prebilled?
should you not have prebilled?
should they not have prebilled? 	should I not have been prebilling?
should you not have been prebilling?
should he not have been prebilling?
should we not have been prebilling?
should you not have been prebilling?
should they not have been prebilling?