ought to fable
Verbo regular: fable - fabled- fabled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to fable
you ought to fable
she ought to fable
we ought to fable
you ought to fable
they ought to fable 	I ought to be fabling
you ought to be fabling
she ought to be fabling
we ought to be fabling
you ought to be fabling
they ought to be fabling	I ought to have fabled
you ought to have fabled
she ought to have fabled
we ought to have fabled
you ought to have fabled
they ought to have fabled	I ought to have been fabling
you ought to have been fabling
she ought to have been fabling
we ought to have been fabling
you ought to have been fabling
they ought to have been fabling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to fable
you ought not to fable
she ought not to fable
we ought not to fable
you ought not to fable
they ought not to fable 	I ought not to fabling
you ought not to fabling
she ought not to fabling
we ought not to fabling
you ought not to fabling
they ought not to fabling	I ought not to have fabled
you ought not to have fabled
she ought not to have fabled
we ought not to have fabled
you ought not to have fabled
they ought not to have fabled	I ought not to have been fabling
you ought not to have been fabling
she ought not to have been fabling
we ought not to have been fabling
you ought not to have been fabling
they ought not to have been fabling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I fable?
ought to you fable?
ought to she fable?
ought to we fable?
ought to you fable?
ought to they fable? 	ought to I be fabling?
ought to you be fabling?
ought to she be fabling?
ought to we be fabling?
ought to you be fabling?
ought to they be fabling? 	ought to I have fabled?
ought to you have fabled?
ought to she have fabled?
ought to we have fabled?
ought to you have fabled?
ought to they have fabled? 	ought to I have been fabling?
ought to you have been fabling?
ought to she have been fabling?
ought to we have been fabling?
ought to you have been fabling?
ought to they have been fabling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to fable?
ought you not to fable?
ought she not to fable?
ought we not to fable?
ought you not to fable?
ought they not to fable? 	ought I not to be fabling?
ought you not to be fabling?
ought she not to be fabling?
ought we not to be fabling?
ought you not to be fabling?
ought they not to be fabling? 	ought I not to have fabled?
ought you not to have fabled?
ought she not to have fabled?
ought we not to have fabled?
ought you not to have fabled?
ought they not to have fabled? 	ought I not to have been fabling?
ought you not to have been fabling?
ought she not to have been fabling?
ought we not to have been fabling?
ought you not to have been fabling?
ought they not to have been fabling?