ought to grub
Verbo regular: grub - grubbed- grubbed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to grub
you ought to grub
he ought to grub
we ought to grub
you ought to grub
they ought to grub 	I ought to be grubbing
you ought to be grubbing
he ought to be grubbing
we ought to be grubbing
you ought to be grubbing
they ought to be grubbing	I ought to have grubbed
you ought to have grubbed
he ought to have grubbed
we ought to have grubbed
you ought to have grubbed
they ought to have grubbed	I ought to have been grubbing
you ought to have been grubbing
he ought to have been grubbing
we ought to have been grubbing
you ought to have been grubbing
they ought to have been grubbing	

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

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

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