ought to alter
Verbo regular: alter - altered- altered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to alter
you ought to alter
he ought to alter
we ought to alter
you ought to alter
they ought to alter 	I ought to be altering
you ought to be altering
he ought to be altering
we ought to be altering
you ought to be altering
they ought to be altering	I ought to have altered
you ought to have altered
he ought to have altered
we ought to have altered
you ought to have altered
they ought to have altered	I ought to have been altering
you ought to have been altering
he ought to have been altering
we ought to have been altering
you ought to have been altering
they ought to have been altering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to alter
you ought not to alter
he ought not to alter
we ought not to alter
you ought not to alter
they ought not to alter 	I ought not to altering
you ought not to altering
he ought not to altering
we ought not to altering
you ought not to altering
they ought not to altering	I ought not to have altered
you ought not to have altered
he ought not to have altered
we ought not to have altered
you ought not to have altered
they ought not to have altered	I ought not to have been altering
you ought not to have been altering
he ought not to have been altering
we ought not to have been altering
you ought not to have been altering
they ought not to have been altering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I alter?
ought to you alter?
ought to he alter?
ought to we alter?
ought to you alter?
ought to they alter? 	ought to I be altering?
ought to you be altering?
ought to he be altering?
ought to we be altering?
ought to you be altering?
ought to they be altering? 	ought to I have altered?
ought to you have altered?
ought to he have altered?
ought to we have altered?
ought to you have altered?
ought to they have altered? 	ought to I have been altering?
ought to you have been altering?
ought to he have been altering?
ought to we have been altering?
ought to you have been altering?
ought to they have been altering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to alter?
ought you not to alter?
ought he not to alter?
ought we not to alter?
ought you not to alter?
ought they not to alter? 	ought I not to be altering?
ought you not to be altering?
ought he not to be altering?
ought we not to be altering?
ought you not to be altering?
ought they not to be altering? 	ought I not to have altered?
ought you not to have altered?
ought he not to have altered?
ought we not to have altered?
ought you not to have altered?
ought they not to have altered? 	ought I not to have been altering?
ought you not to have been altering?
ought he not to have been altering?
ought we not to have been altering?
ought you not to have been altering?
ought they not to have been altering?