ought to ventilate
Verbo regular: ventilate - ventilated- ventilated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to ventilate
you ought to ventilate
he ought to ventilate
we ought to ventilate
you ought to ventilate
they ought to ventilate 	I ought to be ventilating
you ought to be ventilating
he ought to be ventilating
we ought to be ventilating
you ought to be ventilating
they ought to be ventilating	I ought to have ventilated
you ought to have ventilated
he ought to have ventilated
we ought to have ventilated
you ought to have ventilated
they ought to have ventilated	I ought to have been ventilating
you ought to have been ventilating
he ought to have been ventilating
we ought to have been ventilating
you ought to have been ventilating
they ought to have been ventilating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to ventilate
you oughtn't to ventilate
he oughtn't to ventilate
we oughtn't to ventilate
you oughtn't to ventilate
they oughtn't to ventilate 	I oughtn't to be ventilating
you oughtn't to be ventilating
he oughtn't to be ventilating
we oughtn't to be ventilating
you oughtn't to be ventilating
they oughtn't to be ventilating	I oughtn't to have ventilated
you oughtn't to have ventilated
he oughtn't to have ventilated
we oughtn't to have ventilated
you oughtn't to have ventilated
they oughtn't to have ventilated	I oughtn't to have been ventilating
you oughtn't to have been ventilating
he oughtn't to have been ventilating
we oughtn't to have been ventilating
you oughtn't to have been ventilating
they oughtn't to have been ventilating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I ventilate?
ought to you ventilate?
ought to he ventilate?
ought to we ventilate?
ought to you ventilate?
ought to they ventilate? 	ought to I be ventilating?
ought to you be ventilating?
ought to he be ventilating?
ought to we be ventilating?
ought to you be ventilating?
ought to they be ventilating? 	ought to I have ventilated?
ought to you have ventilated?
ought to he have ventilated?
ought to we have ventilated?
ought to you have ventilated?
ought to they have ventilated? 	ought to I have been ventilating?
ought to you have been ventilating?
ought to he have been ventilating?
ought to we have been ventilating?
ought to you have been ventilating?
ought to they have been ventilating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to ventilate?
oughtn't you to ventilate?
oughtn't he to ventilate?
oughtn't we to ventilate?
oughtn't you to ventilate?
oughtn't they to ventilate? 	oughtn't I to be ventilating?
oughtn't you to be ventilating?
oughtn't he to be ventilating?
oughtn't we to be ventilating?
oughtn't you to be ventilating?
oughtn't they to be ventilating? 	oughtn't I to have ventilated?
oughtn't you to have ventilated?
oughtn't he to have ventilated?
oughtn't we to have ventilated?
oughtn't you to have ventilated?
oughtn't they to have ventilated? 	oughtn't I to have been ventilating?
oughtn't you to have been ventilating?
oughtn't he to have been ventilating?
oughtn't we to have been ventilating?
oughtn't you to have been ventilating?
oughtn't they to have been ventilating?