shall bill
Verbo regular: bill - billed- billed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall bill
you shall bill
he shall bill
we shall bill
you shall bill
they shall bill 	I shall be billing
you shall be billing
he shall be billing
we shall be billing
you shall be billing
they shall be billing	I shall have billed
you shall have billed
he shall have billed
we shall have billed
you shall have billed
they shall have billed	I shall have been billing
you shall have been billing
he shall have been billing
we shall have been billing
you shall have been billing
they shall have been billing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall not bill
you shall not bill
he shall not bill
we shall not bill
you shall not bill
they shall not bill 	I shall not be billing
you shall not be billing
he shall not be billing
we shall not be billing
you shall not be billing
they shall not be billing	I shall not have billed
you shall not have billed
he shall not have billed
we shall not have billed
you shall not have billed
they shall not have billed	I shall not have been billing
you shall not have been billing
he shall not have been billing
we shall not have been billing
you shall not have been billing
they shall not have been billing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I bill?
shall you bill?
shall he bill?
shall we bill?
shall you bill?
shall they bill? 	shall I be billing?
shall you be billing?
shall he be billing?
shall we be billing?
shall you be billing?
shall they be billing? 	shall I have billed?
shall you have billed?
shall he have billed?
shall we have billed?
shall you have billed?
shall they have billed? 	shall I have been billing?
shall you have been billing?
shall he have been billing?
shall we have been billing?
shall you have been billing?
shall they have been billing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I not bill?
shall you not bill?
shall he not bill?
shall we not bill?
shall you not bill?
shall they not bill? 	shall I not be billing?
shall you not be billing?
shall he not be billing?
shall we not be billing?
shall you not be billing?
shall they not be billing? 	shall I not have billed?
shall you not have billed?
shall he not have billed?
shall we not have billed?
shall you not have billed?
shall they not have billed? 	shall I not have been billing?
shall you not have been billing?
shall he not have been billing?
shall we not have been billing?
shall you not have been billing?
shall they not have been billing?