ought to fasten
Verbo regular: fasten - fastened- fastened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to fasten
you ought to fasten
she ought to fasten
we ought to fasten
you ought to fasten
they ought to fasten 	I ought to be fastening
you ought to be fastening
she ought to be fastening
we ought to be fastening
you ought to be fastening
they ought to be fastening	I ought to have fastened
you ought to have fastened
she ought to have fastened
we ought to have fastened
you ought to have fastened
they ought to have fastened	I ought to have been fastening
you ought to have been fastening
she ought to have been fastening
we ought to have been fastening
you ought to have been fastening
they ought to have been fastening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to fasten
you ought not to fasten
she ought not to fasten
we ought not to fasten
you ought not to fasten
they ought not to fasten 	I ought not to fastening
you ought not to fastening
she ought not to fastening
we ought not to fastening
you ought not to fastening
they ought not to fastening	I ought not to have fastened
you ought not to have fastened
she ought not to have fastened
we ought not to have fastened
you ought not to have fastened
they ought not to have fastened	I ought not to have been fastening
you ought not to have been fastening
she ought not to have been fastening
we ought not to have been fastening
you ought not to have been fastening
they ought not to have been fastening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I fasten?
ought to you fasten?
ought to she fasten?
ought to we fasten?
ought to you fasten?
ought to they fasten? 	ought to I be fastening?
ought to you be fastening?
ought to she be fastening?
ought to we be fastening?
ought to you be fastening?
ought to they be fastening? 	ought to I have fastened?
ought to you have fastened?
ought to she have fastened?
ought to we have fastened?
ought to you have fastened?
ought to they have fastened? 	ought to I have been fastening?
ought to you have been fastening?
ought to she have been fastening?
ought to we have been fastening?
ought to you have been fastening?
ought to they have been fastening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to fasten?
ought you not to fasten?
ought she not to fasten?
ought we not to fasten?
ought you not to fasten?
ought they not to fasten? 	ought I not to be fastening?
ought you not to be fastening?
ought she not to be fastening?
ought we not to be fastening?
ought you not to be fastening?
ought they not to be fastening? 	ought I not to have fastened?
ought you not to have fastened?
ought she not to have fastened?
ought we not to have fastened?
ought you not to have fastened?
ought they not to have fastened? 	ought I not to have been fastening?
ought you not to have been fastening?
ought she not to have been fastening?
ought we not to have been fastening?
ought you not to have been fastening?
ought they not to have been fastening?