shall grub
Verbo regular: grub - grubbed- grubbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall grub
you shall grub
he shall grub
we shall grub
you shall grub
they shall grub 	I shall be grubbing
you shall be grubbing
he shall be grubbing
we shall be grubbing
you shall be grubbing
they shall be grubbing	I shall have grubbed
you shall have grubbed
he shall have grubbed
we shall have grubbed
you shall have grubbed
they shall have grubbed	I shall have been grubbing
you shall have been grubbing
he shall have been grubbing
we shall have been grubbing
you shall have been grubbing
they shall have been grubbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall not grub
you shall not grub
he shall not grub
we shall not grub
you shall not grub
they shall not grub 	I shall not be grubbing
you shall not be grubbing
he shall not be grubbing
we shall not be grubbing
you shall not be grubbing
they shall not be grubbing	I shall not have grubbed
you shall not have grubbed
he shall not have grubbed
we shall not have grubbed
you shall not have grubbed
they shall not have grubbed	I shall not have been grubbing
you shall not have been grubbing
he shall not have been grubbing
we shall not have been grubbing
you shall not have been grubbing
they shall not have been grubbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I grub?
shall you grub?
shall he grub?
shall we grub?
shall you grub?
shall they grub? 	shall I be grubbing?
shall you be grubbing?
shall he be grubbing?
shall we be grubbing?
shall you be grubbing?
shall they be grubbing? 	shall I have grubbed?
shall you have grubbed?
shall he have grubbed?
shall we have grubbed?
shall you have grubbed?
shall they have grubbed? 	shall I have been grubbing?
shall you have been grubbing?
shall he have been grubbing?
shall we have been grubbing?
shall you have been grubbing?
shall they have been grubbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I not grub?
shall you not grub?
shall he not grub?
shall we not grub?
shall you not grub?
shall they not grub? 	shall I not be grubbing?
shall you not be grubbing?
shall he not be grubbing?
shall we not be grubbing?
shall you not be grubbing?
shall they not be grubbing? 	shall I not have grubbed?
shall you not have grubbed?
shall he not have grubbed?
shall we not have grubbed?
shall you not have grubbed?
shall they not have grubbed? 	shall I not have been grubbing?
shall you not have been grubbing?
shall he not have been grubbing?
shall we not have been grubbing?
shall you not have been grubbing?
shall they not have been grubbing?