ought to whiten
Verbo regular: whiten - whitened- whitened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to whiten
you ought to whiten
he ought to whiten
we ought to whiten
you ought to whiten
they ought to whiten 	I ought to be whitening
you ought to be whitening
he ought to be whitening
we ought to be whitening
you ought to be whitening
they ought to be whitening	I ought to have whitened
you ought to have whitened
he ought to have whitened
we ought to have whitened
you ought to have whitened
they ought to have whitened	I ought to have been whitening
you ought to have been whitening
he ought to have been whitening
we ought to have been whitening
you ought to have been whitening
they ought to have been whitening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to whiten
you ought not to whiten
he ought not to whiten
we ought not to whiten
you ought not to whiten
they ought not to whiten 	I ought not to whitening
you ought not to whitening
he ought not to whitening
we ought not to whitening
you ought not to whitening
they ought not to whitening	I ought not to have whitened
you ought not to have whitened
he ought not to have whitened
we ought not to have whitened
you ought not to have whitened
they ought not to have whitened	I ought not to have been whitening
you ought not to have been whitening
he ought not to have been whitening
we ought not to have been whitening
you ought not to have been whitening
they ought not to have been whitening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I whiten?
ought to you whiten?
ought to he whiten?
ought to we whiten?
ought to you whiten?
ought to they whiten? 	ought to I be whitening?
ought to you be whitening?
ought to he be whitening?
ought to we be whitening?
ought to you be whitening?
ought to they be whitening? 	ought to I have whitened?
ought to you have whitened?
ought to he have whitened?
ought to we have whitened?
ought to you have whitened?
ought to they have whitened? 	ought to I have been whitening?
ought to you have been whitening?
ought to he have been whitening?
ought to we have been whitening?
ought to you have been whitening?
ought to they have been whitening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to whiten?
ought you not to whiten?
ought he not to whiten?
ought we not to whiten?
ought you not to whiten?
ought they not to whiten? 	ought I not to be whitening?
ought you not to be whitening?
ought he not to be whitening?
ought we not to be whitening?
ought you not to be whitening?
ought they not to be whitening? 	ought I not to have whitened?
ought you not to have whitened?
ought he not to have whitened?
ought we not to have whitened?
ought you not to have whitened?
ought they not to have whitened? 	ought I not to have been whitening?
ought you not to have been whitening?
ought he not to have been whitening?
ought we not to have been whitening?
ought you not to have been whitening?
ought they not to have been whitening?