should grub
Verbo regular: grub - grubbed- grubbed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd grub
you'd grub
he'd grub
we'd grub
you'd grub
they'd grub 	I'd be grubbing
you'd be grubbing
he'd be grubbing
we'd be grubbing
you'd be grubbing
they'd be grubbing	I should've grubbed
you should've grubbed
he should've grubbed
we should've grubbed
you should've grubbed
they should've grubbed	I should've been grubbing
you should've been grubbing
he should've been grubbing
we should've been grubbing
you should've been grubbing
they should've been grubbing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't grub
you shouldn't grub
he shouldn't grub
we shouldn't grub
you shouldn't grub
they shouldn't grub 	I shouldn't be grubbing
you shouldn't be grubbing
he shouldn't be grubbing
we shouldn't be grubbing
you shouldn't be grubbing
they shouldn't be grubbing	I shouldn't have grubbed
you shouldn't have grubbed
he shouldn't have grubbed
we shouldn't have grubbed
you shouldn't have grubbed
they shouldn't have grubbed	I shouldn't have been grubbing
you shouldn't have been grubbing
he shouldn't have been grubbing
we shouldn't have been grubbing
you shouldn't have been grubbing
they shouldn't have been grubbing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I grub?
should you grub?
should he grub?
should we grub?
should you grub?
should they grub? 	should I be grubbing?
should you be grubbing?
should he be grubbing?
should we be grubbing?
should you be grubbing?
should they be grubbing? 	should I have grubbed?
should you have grubbed?
should he have grubbed?
should we have grubbed?
should you have grubbed?
should they have grubbed? 	should I have been grubbing?
should you have been grubbing?
should he have been grubbing?
should we have been grubbing?
should you have been grubbing?
should they have been grubbing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I grub?
shouldn't you grub?
shouldn't he grub?
shouldn't we grub?
shouldn't you grub?
shouldn't they grub? 	shouldn't I be grubbing?
shouldn't you be grubbing?
shouldn't he be grubbing?
shouldn't we be grubbing?
shouldn't you be grubbing?
shouldn't they be grubbing? 	shouldn't I have grubbed?
shouldn't you have grubbed?
shouldn't he have grubbed?
shouldn't we have grubbed?
shouldn't you have grubbed?
shouldn't they have grubbed? 	shouldn't I have been grubbing?
shouldn't you have been grubbing?
shouldn't he have been grubbing?
shouldn't we have been grubbing?
shouldn't you have been grubbing?
shouldn't they have been grubbing?