can retune
Verbo regular: retune - retuned- retuned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can retune
you can retune
he can retune
we can retune
you can retune
they can retune 	I can be retuning
you can be retuning
he can be retuning
we can be retuning
you can be retuning
they can be retuning	I can have retuned
you can have retuned
he can have retuned
we can have retuned
you can have retuned
they can have retuned	I can have been retuning
you can have been retuning
he can have been retuning
we can have been retuning
you can have been retuning
they can have been retuning	

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

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

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