could untune
Verbo regular: untune - untuned- untuned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could untune
you could untune
he could untune
we could untune
you could untune
they could untune 	I could be untuning
you could be untuning
he could be untuning
we could be untuning
you could be untuning
they could be untuning	I could have untuned
you could have untuned
he could have untuned
we could have untuned
you could have untuned
they could have untuned	I could have been untuning
you could have been untuning
he could have been untuning
we could have been untuning
you could have been untuning
they could have been untuning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't untune
you couldn't untune
he couldn't untune
we couldn't untune
you couldn't untune
they couldn't untune 	I couldn't be untuning
you couldn't be untuning
he couldn't be untuning
we couldn't be untuning
you couldn't be untuning
they couldn't be untuning	I couldn't have untuned
you couldn't have untuned
he couldn't have untuned
we couldn't have untuned
you couldn't have untuned
they couldn't have untuned	I couldn't have been untuning
you couldn't have been untuning
he couldn't have been untuning
we couldn't have been untuning
you couldn't have been untuning
they couldn't have been untuning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I untune?
could you untune?
could he untune?
could we untune?
could you untune?
could they untune? 	could I be untuning?
could you be untuning?
could he be untuning?
could we be untuning?
could you be untuning?
could they be untuning? 	could I have untuned?
could you have untuned?
could he have untuned?
could we have untuned?
could you have untuned?
could they have untuned? 	could I have been untuning?
could you have been untuning?
could he have been untuning?
could we have been untuning?
could you have been untuning?
could they have been untuning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I untune?
couldn't you untune?
couldn't he untune?
couldn't we untune?
couldn't you untune?
couldn't they untune? 	couldn't I be untuning?
couldn't you be untuning?
couldn't he be untuning?
couldn't we be untuning?
couldn't you be untuning?
couldn't they be untuning? 	couldn't I have untuned?
couldn't you have untuned?
couldn't he have untuned?
couldn't we have untuned?
couldn't you have untuned?
couldn't they have untuned? 	couldn't I have been untuning?
couldn't you have been untuning?
couldn't he have been untuning?
couldn't we have been untuning?
couldn't you have been untuning?
couldn't they have been untuning?