ought to attend
Verbo regular: attend - attended- attended

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to attend
you ought to attend
he ought to attend
we ought to attend
you ought to attend
they ought to attend 	I ought to be attending
you ought to be attending
he ought to be attending
we ought to be attending
you ought to be attending
they ought to be attending	I ought to have attended
you ought to have attended
he ought to have attended
we ought to have attended
you ought to have attended
they ought to have attended	I ought to have been attending
you ought to have been attending
he ought to have been attending
we ought to have been attending
you ought to have been attending
they ought to have been attending	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I oughtn't to attend
you oughtn't to attend
he oughtn't to attend
we oughtn't to attend
you oughtn't to attend
they oughtn't to attend 	I oughtn't to be attending
you oughtn't to be attending
he oughtn't to be attending
we oughtn't to be attending
you oughtn't to be attending
they oughtn't to be attending	I oughtn't to have attended
you oughtn't to have attended
he oughtn't to have attended
we oughtn't to have attended
you oughtn't to have attended
they oughtn't to have attended	I oughtn't to have been attending
you oughtn't to have been attending
he oughtn't to have been attending
we oughtn't to have been attending
you oughtn't to have been attending
they oughtn't to have been attending	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I attend?
ought to you attend?
ought to he attend?
ought to we attend?
ought to you attend?
ought to they attend? 	ought to I be attending?
ought to you be attending?
ought to he be attending?
ought to we be attending?
ought to you be attending?
ought to they be attending? 	ought to I have attended?
ought to you have attended?
ought to he have attended?
ought to we have attended?
ought to you have attended?
ought to they have attended? 	ought to I have been attending?
ought to you have been attending?
ought to he have been attending?
ought to we have been attending?
ought to you have been attending?
ought to they have been attending? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
oughtn't I to attend?
oughtn't you to attend?
oughtn't he to attend?
oughtn't we to attend?
oughtn't you to attend?
oughtn't they to attend? 	oughtn't I to be attending?
oughtn't you to be attending?
oughtn't he to be attending?
oughtn't we to be attending?
oughtn't you to be attending?
oughtn't they to be attending? 	oughtn't I to have attended?
oughtn't you to have attended?
oughtn't he to have attended?
oughtn't we to have attended?
oughtn't you to have attended?
oughtn't they to have attended? 	oughtn't I to have been attending?
oughtn't you to have been attending?
oughtn't he to have been attending?
oughtn't we to have been attending?
oughtn't you to have been attending?
oughtn't they to have been attending?