should unfasten
Verbo regular: unfasten - unfastened- unfastened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should unfasten
you should unfasten
he should unfasten
we should unfasten
you should unfasten
they should unfasten 	I should be unfastening
you should be unfastening
he should be unfastening
we should be unfastening
you should be unfastening
they should be unfastening	I should have unfastened
you should have unfastened
he should have unfastened
we should have unfastened
you should have unfastened
they should have unfastened	I should have been unfastening
you should have been unfastening
he should have been unfastening
we should have been unfastening
you should have been unfastening
they should have been unfastening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not unfasten
you should not unfasten
he should not unfasten
we should not unfasten
you should not unfasten
they should not unfasten 	I should not be unfastening
you should not be unfastening
he should not be unfastening
we should not be unfastening
you should not be unfastening
they should not be unfastening	I should not have unfastened
you should not have unfastened
he should not have unfastened
we should not have unfastened
you should not have unfastened
they should not have unfastened	I should not have been unfastening
you should not have been unfastening
he should not have been unfastening
we should not have been unfastening
you should not have been unfastening
they should not have been unfastening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I unfasten?
should you unfasten?
should he unfasten?
should we unfasten?
should you unfasten?
should they unfasten? 	should I be unfastening?
should you be unfastening?
should he be unfastening?
should we be unfastening?
should you be unfastening?
should they be unfastening? 	should I have unfastened?
should you have unfastened?
should he have unfastened?
should we have unfastened?
should you have unfastened?
should they have unfastened? 	should I have been unfastening?
should you have been unfastening?
should he have been unfastening?
should we have been unfastening?
should you have been unfastening?
should they have been unfastening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not unfasten?
should you not unfasten?
should he not unfasten?
should we not unfasten?
should you not unfasten?
should they not unfasten? 	should I not be unfastening?
should you not be unfastening?
should he not be unfastening?
should we not be unfastening?
should you not be unfastening?
should they not be unfastening? 	should I not have unfastened?
should you not have unfastened?
should he not have unfastened?
should we not have unfastened?
should you not have unfastened?
should they not have unfastened? 	should I not have been unfastening?
should you not have been unfastening?
should he not have been unfastening?
should we not have been unfastening?
should you not have been unfastening?
should they not have been unfastening?