ought to observe
Verbo regular: observe - observed- observed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to observe
you ought to observe
she ought to observe
we ought to observe
you ought to observe
they ought to observe 	I ought to be observing
you ought to be observing
she ought to be observing
we ought to be observing
you ought to be observing
they ought to be observing	I ought to have observed
you ought to have observed
she ought to have observed
we ought to have observed
you ought to have observed
they ought to have observed	I ought to have been observing
you ought to have been observing
she ought to have been observing
we ought to have been observing
you ought to have been observing
they ought to have been observing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to observe
you ought not to observe
she ought not to observe
we ought not to observe
you ought not to observe
they ought not to observe 	I ought not to observing
you ought not to observing
she ought not to observing
we ought not to observing
you ought not to observing
they ought not to observing	I ought not to have observed
you ought not to have observed
she ought not to have observed
we ought not to have observed
you ought not to have observed
they ought not to have observed	I ought not to have been observing
you ought not to have been observing
she ought not to have been observing
we ought not to have been observing
you ought not to have been observing
they ought not to have been observing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I observe?
ought to you observe?
ought to she observe?
ought to we observe?
ought to you observe?
ought to they observe? 	ought to I be observing?
ought to you be observing?
ought to she be observing?
ought to we be observing?
ought to you be observing?
ought to they be observing? 	ought to I have observed?
ought to you have observed?
ought to she have observed?
ought to we have observed?
ought to you have observed?
ought to they have observed? 	ought to I have been observing?
ought to you have been observing?
ought to she have been observing?
ought to we have been observing?
ought to you have been observing?
ought to they have been observing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to observe?
ought you not to observe?
ought she not to observe?
ought we not to observe?
ought you not to observe?
ought they not to observe? 	ought I not to be observing?
ought you not to be observing?
ought she not to be observing?
ought we not to be observing?
ought you not to be observing?
ought they not to be observing? 	ought I not to have observed?
ought you not to have observed?
ought she not to have observed?
ought we not to have observed?
ought you not to have observed?
ought they not to have observed? 	ought I not to have been observing?
ought you not to have been observing?
ought she not to have been observing?
ought we not to have been observing?
ought you not to have been observing?
ought they not to have been observing?