shall brief
Verbo regular: brief - briefed- briefed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall brief
you shall brief
he shall brief
we shall brief
you shall brief
they shall brief 	I shall be briefing
you shall be briefing
he shall be briefing
we shall be briefing
you shall be briefing
they shall be briefing	I shall have briefed
you shall have briefed
he shall have briefed
we shall have briefed
you shall have briefed
they shall have briefed	I shall have been briefing
you shall have been briefing
he shall have been briefing
we shall have been briefing
you shall have been briefing
they shall have been briefing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall not brief
you shall not brief
he shall not brief
we shall not brief
you shall not brief
they shall not brief 	I shall not be briefing
you shall not be briefing
he shall not be briefing
we shall not be briefing
you shall not be briefing
they shall not be briefing	I shall not have briefed
you shall not have briefed
he shall not have briefed
we shall not have briefed
you shall not have briefed
they shall not have briefed	I shall not have been briefing
you shall not have been briefing
he shall not have been briefing
we shall not have been briefing
you shall not have been briefing
they shall not have been briefing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I brief?
shall you brief?
shall he brief?
shall we brief?
shall you brief?
shall they brief? 	shall I be briefing?
shall you be briefing?
shall he be briefing?
shall we be briefing?
shall you be briefing?
shall they be briefing? 	shall I have briefed?
shall you have briefed?
shall he have briefed?
shall we have briefed?
shall you have briefed?
shall they have briefed? 	shall I have been briefing?
shall you have been briefing?
shall he have been briefing?
shall we have been briefing?
shall you have been briefing?
shall they have been briefing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I not brief?
shall you not brief?
shall he not brief?
shall we not brief?
shall you not brief?
shall they not brief? 	shall I not be briefing?
shall you not be briefing?
shall he not be briefing?
shall we not be briefing?
shall you not be briefing?
shall they not be briefing? 	shall I not have briefed?
shall you not have briefed?
shall he not have briefed?
shall we not have briefed?
shall you not have briefed?
shall they not have briefed? 	shall I not have been briefing?
shall you not have been briefing?
shall he not have been briefing?
shall we not have been briefing?
shall you not have been briefing?
shall they not have been briefing?