will fasten
Verbo regular: fasten - fastened- fastened

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

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I won't fasten
you won't fasten
she won't fasten
we won't fasten
you won't fasten
they won't fasten 	I won't be fastening
you won't be fastening
she won't be fastening
we won't be fastening
you won't be fastening
they won't be fastening	I won't have fastened
you won't have fastened
she won't have fastened
we won't have fastened
you won't have fastened
they won't have fastened	I won't have been fastening
you won't have been fastening
she won't have been fastening
we won't have been fastening
you won't have been fastening
they won't have been fastening	

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

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
won't I fasten?
won't you fasten?
won't she fasten?
won't we fasten?
won't you fasten?
won't they fasten? 	won't I be fastening?
won't you be fastening?
won't she be fastening?
won't we be fastening?
won't you be fastening?
won't they be fastening? 	won't I have fastened?
won't you have fastened?
won't she have fastened?
won't we have fastened?
won't you have fastened?
won't they have fastened? 	won't I have been fastening?
won't you have been fastening?
won't she have been fastening?
won't we have been fastening?
won't you have been fastening?
won't they have been fastening?