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 ought not to back
you ought not to back
he ought not to back
we ought not to back
you ought not to back
they ought not to back 	I ought not to backing
you ought not to backing
he ought not to backing
we ought not to backing
you ought not to backing
they ought not to backing	I ought not to have backed
you ought not to have backed
he ought not to have backed
we ought not to have backed
you ought not to have backed
they ought not to have backed	I ought not to have been backing
you ought not to have been backing
he ought not to have been backing
we ought not to have been backing
you ought not to have been backing
they ought not 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 	
ought I not to back?
ought you not to back?
ought he not to back?
ought we not to back?
ought you not to back?
ought they not to back? 	ought I not to be backing?
ought you not to be backing?
ought he not to be backing?
ought we not to be backing?
ought you not to be backing?
ought they not to be backing? 	ought I not to have backed?
ought you not to have backed?
ought he not to have backed?
ought we not to have backed?
ought you not to have backed?
ought they not to have backed? 	ought I not to have been backing?
ought you not to have been backing?
ought he not to have been backing?
ought we not to have been backing?
ought you not to have been backing?
ought they not to have been backing?