ought to intervene
Verbo regular: intervene - intervened- intervened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to intervene
you ought to intervene
she ought to intervene
we ought to intervene
you ought to intervene
they ought to intervene 	I ought to be intervening
you ought to be intervening
she ought to be intervening
we ought to be intervening
you ought to be intervening
they ought to be intervening	I ought to have intervened
you ought to have intervened
she ought to have intervened
we ought to have intervened
you ought to have intervened
they ought to have intervened	I ought to have been intervening
you ought to have been intervening
she ought to have been intervening
we ought to have been intervening
you ought to have been intervening
they ought to have been intervening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I oughtn't to intervene
you oughtn't to intervene
she oughtn't to intervene
we oughtn't to intervene
you oughtn't to intervene
they oughtn't to intervene 	I oughtn't to be intervening
you oughtn't to be intervening
she oughtn't to be intervening
we oughtn't to be intervening
you oughtn't to be intervening
they oughtn't to be intervening	I oughtn't to have intervened
you oughtn't to have intervened
she oughtn't to have intervened
we oughtn't to have intervened
you oughtn't to have intervened
they oughtn't to have intervened	I oughtn't to have been intervening
you oughtn't to have been intervening
she oughtn't to have been intervening
we oughtn't to have been intervening
you oughtn't to have been intervening
they oughtn't to have been intervening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I intervene?
ought to you intervene?
ought to she intervene?
ought to we intervene?
ought to you intervene?
ought to they intervene? 	ought to I be intervening?
ought to you be intervening?
ought to she be intervening?
ought to we be intervening?
ought to you be intervening?
ought to they be intervening? 	ought to I have intervened?
ought to you have intervened?
ought to she have intervened?
ought to we have intervened?
ought to you have intervened?
ought to they have intervened? 	ought to I have been intervening?
ought to you have been intervening?
ought to she have been intervening?
ought to we have been intervening?
ought to you have been intervening?
ought to they have been intervening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
oughtn't I to intervene?
oughtn't you to intervene?
oughtn't she to intervene?
oughtn't we to intervene?
oughtn't you to intervene?
oughtn't they to intervene? 	oughtn't I to be intervening?
oughtn't you to be intervening?
oughtn't she to be intervening?
oughtn't we to be intervening?
oughtn't you to be intervening?
oughtn't they to be intervening? 	oughtn't I to have intervened?
oughtn't you to have intervened?
oughtn't she to have intervened?
oughtn't we to have intervened?
oughtn't you to have intervened?
oughtn't they to have intervened? 	oughtn't I to have been intervening?
oughtn't you to have been intervening?
oughtn't she to have been intervening?
oughtn't we to have been intervening?
oughtn't you to have been intervening?
oughtn't they to have been intervening?