should retune
Verbo regular: retune - retuned- retuned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd retune
you'd retune
he'd retune
we'd retune
you'd retune
they'd retune 	I'd be retuning
you'd be retuning
he'd be retuning
we'd be retuning
you'd be retuning
they'd be retuning	I should've retuned
you should've retuned
he should've retuned
we should've retuned
you should've retuned
they should've retuned	I should've been retuning
you should've been retuning
he should've been retuning
we should've been retuning
you should've been retuning
they should've been retuning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't retune
you shouldn't retune
he shouldn't retune
we shouldn't retune
you shouldn't retune
they shouldn't retune 	I shouldn't be retuning
you shouldn't be retuning
he shouldn't be retuning
we shouldn't be retuning
you shouldn't be retuning
they shouldn't be retuning	I shouldn't have retuned
you shouldn't have retuned
he shouldn't have retuned
we shouldn't have retuned
you shouldn't have retuned
they shouldn't have retuned	I shouldn't have been retuning
you shouldn't have been retuning
he shouldn't have been retuning
we shouldn't have been retuning
you shouldn't have been retuning
they shouldn't have been retuning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I retune?
should you retune?
should he retune?
should we retune?
should you retune?
should they retune? 	should I be retuning?
should you be retuning?
should he be retuning?
should we be retuning?
should you be retuning?
should they be retuning? 	should I have retuned?
should you have retuned?
should he have retuned?
should we have retuned?
should you have retuned?
should they have retuned? 	should I have been retuning?
should you have been retuning?
should he have been retuning?
should we have been retuning?
should you have been retuning?
should they have been retuning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I retune?
shouldn't you retune?
shouldn't he retune?
shouldn't we retune?
shouldn't you retune?
shouldn't they retune? 	shouldn't I be retuning?
shouldn't you be retuning?
shouldn't he be retuning?
shouldn't we be retuning?
shouldn't you be retuning?
shouldn't they be retuning? 	shouldn't I have retuned?
shouldn't you have retuned?
shouldn't he have retuned?
shouldn't we have retuned?
shouldn't you have retuned?
shouldn't they have retuned? 	shouldn't I have been retuning?
shouldn't you have been retuning?
shouldn't he have been retuning?
shouldn't we have been retuning?
shouldn't you have been retuning?
shouldn't they have been retuning?