ought to back
Verbo regular: back - backed- backed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to back
you ought to back
he ought to back
we ought to back
you ought to back
they ought to back 	I ought to be backing
you ought to be backing
he ought to be backing
we ought to be backing
you ought to be backing
they ought to be backing	I ought to have backed
you ought to have backed
he ought to have backed
we ought to have backed
you ought to have backed
they ought to have backed	I ought to have been backing
you ought to have been backing
he ought to have been backing
we ought to have been backing
you ought to have been backing
they ought to have been backing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to back
you oughtn't to back
he oughtn't to back
we oughtn't to back
you oughtn't to back
they oughtn't to back 	I oughtn't to be backing
you oughtn't to be backing
he oughtn't to be backing
we oughtn't to be backing
you oughtn't to be backing
they oughtn't to be backing	I oughtn't to have backed
you oughtn't to have backed
he oughtn't to have backed
we oughtn't to have backed
you oughtn't to have backed
they oughtn't to have backed	I oughtn't to have been backing
you oughtn't to have been backing
he oughtn't to have been backing
we oughtn't to have been backing
you oughtn't to have been backing
they oughtn't to have been backing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I back?
ought to you back?
ought to he back?
ought to we back?
ought to you back?
ought to they back? 	ought to I be backing?
ought to you be backing?
ought to he be backing?
ought to we be backing?
ought to you be backing?
ought to they be backing? 	ought to I have backed?
ought to you have backed?
ought to he have backed?
ought to we have backed?
ought to you have backed?
ought to they have backed? 	ought to I have been backing?
ought to you have been backing?
ought to he have been backing?
ought to we have been backing?
ought to you have been backing?
ought to they have been backing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to back?
oughtn't you to back?
oughtn't he to back?
oughtn't we to back?
oughtn't you to back?
oughtn't they to back? 	oughtn't I to be backing?
oughtn't you to be backing?
oughtn't he to be backing?
oughtn't we to be backing?
oughtn't you to be backing?
oughtn't they to be backing? 	oughtn't I to have backed?
oughtn't you to have backed?
oughtn't he to have backed?
oughtn't we to have backed?
oughtn't you to have backed?
oughtn't they to have backed? 	oughtn't I to have been backing?
oughtn't you to have been backing?
oughtn't he to have been backing?
oughtn't we to have been backing?
oughtn't you to have been backing?
oughtn't they to have been backing?