should untie
Verbo regular: untie - untied- untied

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd untie
you'd untie
he'd untie
we'd untie
you'd untie
they'd untie 	I'd be untying
you'd be untying
he'd be untying
we'd be untying
you'd be untying
they'd be untying	I should've untied
you should've untied
he should've untied
we should've untied
you should've untied
they should've untied	I should've been untying
you should've been untying
he should've been untying
we should've been untying
you should've been untying
they should've been untying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't untie
you shouldn't untie
he shouldn't untie
we shouldn't untie
you shouldn't untie
they shouldn't untie 	I shouldn't be untying
you shouldn't be untying
he shouldn't be untying
we shouldn't be untying
you shouldn't be untying
they shouldn't be untying	I shouldn't have untied
you shouldn't have untied
he shouldn't have untied
we shouldn't have untied
you shouldn't have untied
they shouldn't have untied	I shouldn't have been untying
you shouldn't have been untying
he shouldn't have been untying
we shouldn't have been untying
you shouldn't have been untying
they shouldn't have been untying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I untie?
should you untie?
should he untie?
should we untie?
should you untie?
should they untie? 	should I be untying?
should you be untying?
should he be untying?
should we be untying?
should you be untying?
should they be untying? 	should I have untied?
should you have untied?
should he have untied?
should we have untied?
should you have untied?
should they have untied? 	should I have been untying?
should you have been untying?
should he have been untying?
should we have been untying?
should you have been untying?
should they have been untying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I untie?
shouldn't you untie?
shouldn't he untie?
shouldn't we untie?
shouldn't you untie?
shouldn't they untie? 	shouldn't I be untying?
shouldn't you be untying?
shouldn't he be untying?
shouldn't we be untying?
shouldn't you be untying?
shouldn't they be untying? 	shouldn't I have untied?
shouldn't you have untied?
shouldn't he have untied?
shouldn't we have untied?
shouldn't you have untied?
shouldn't they have untied? 	shouldn't I have been untying?
shouldn't you have been untying?
shouldn't he have been untying?
shouldn't we have been untying?
shouldn't you have been untying?
shouldn't they have been untying?