ought to buy
Verbo irregular: buy - bought- bought

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to buy
you ought to buy
she ought to buy
we ought to buy
you ought to buy
they ought to buy 	I ought to be buying
you ought to be buying
she ought to be buying
we ought to be buying
you ought to be buying
they ought to be buying	I ought to have bought
you ought to have bought
she ought to have bought
we ought to have bought
you ought to have bought
they ought to have bought	I ought to have been buying
you ought to have been buying
she ought to have been buying
we ought to have been buying
you ought to have been buying
they ought to have been buying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to buy
you oughtn't to buy
she oughtn't to buy
we oughtn't to buy
you oughtn't to buy
they oughtn't to buy 	I oughtn't to be buying
you oughtn't to be buying
she oughtn't to be buying
we oughtn't to be buying
you oughtn't to be buying
they oughtn't to be buying	I oughtn't to have bought
you oughtn't to have bought
she oughtn't to have bought
we oughtn't to have bought
you oughtn't to have bought
they oughtn't to have bought	I oughtn't to have been buying
you oughtn't to have been buying
she oughtn't to have been buying
we oughtn't to have been buying
you oughtn't to have been buying
they oughtn't to have been buying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I buy?
ought to you buy?
ought to she buy?
ought to we buy?
ought to you buy?
ought to they buy? 	ought to I be buying?
ought to you be buying?
ought to she be buying?
ought to we be buying?
ought to you be buying?
ought to they be buying? 	ought to I have bought?
ought to you have bought?
ought to she have bought?
ought to we have bought?
ought to you have bought?
ought to they have bought? 	ought to I have been buying?
ought to you have been buying?
ought to she have been buying?
ought to we have been buying?
ought to you have been buying?
ought to they have been buying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to buy?
oughtn't you to buy?
oughtn't she to buy?
oughtn't we to buy?
oughtn't you to buy?
oughtn't they to buy? 	oughtn't I to be buying?
oughtn't you to be buying?
oughtn't she to be buying?
oughtn't we to be buying?
oughtn't you to be buying?
oughtn't they to be buying? 	oughtn't I to have bought?
oughtn't you to have bought?
oughtn't she to have bought?
oughtn't we to have bought?
oughtn't you to have bought?
oughtn't they to have bought? 	oughtn't I to have been buying?
oughtn't you to have been buying?
oughtn't she to have been buying?
oughtn't we to have been buying?
oughtn't you to have been buying?
oughtn't they to have been buying?