can untie
Verbo regular: untie - untied- untied

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can untie
you can untie
he can untie
we can untie
you can untie
they can untie 	I can be untying
you can be untying
he can be untying
we can be untying
you can be untying
they can be untying	I can have untied
you can have untied
he can have untied
we can have untied
you can have untied
they can have untied	I can have been untying
you can have been untying
he can have been untying
we can have been untying
you can have been untying
they can have been untying	

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

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

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