can untune
Regular verb: untune - untuned- untuned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can untune
you can untune
he can untune
we can untune
you can untune
they can untune 	I can be untuning
you can be untuning
he can be untuning
we can be untuning
you can be untuning
they can be untuning	I can have untuned
you can have untuned
he can have untuned
we can have untuned
you can have untuned
they can have untuned	I can have been untuning
you can have been untuning
he can have been untuning
we can have been untuning
you can have been untuning
they can have been untuning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot untune
you cannot untune
he cannot untune
we cannot untune
you cannot untune
they cannot untune 	I cannot be untuning
you cannot be untuning
he cannot be untuning
we cannot be untuning
you cannot be untuning
they cannot be untuning	I cannot have untuned
you cannot have untuned
he cannot have untuned
we cannot have untuned
you cannot have untuned
they cannot have untuned	I cannot have been untuning
you cannot have been untuning
he cannot have been untuning
we cannot have been untuning
you cannot have been untuning
they cannot have been untuning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I untune?
can you untune?
can he untune?
can we untune?
can you untune?
can they untune? 	can I be untuning?
can you be untuning?
can he be untuning?
can we be untuning?
can you be untuning?
can they be untuning? 	can I have untuned?
can you have untuned?
can he have untuned?
can we have untuned?
can you have untuned?
can they have untuned? 	can I have been untuning?
can you have been untuning?
can he have been untuning?
can we have been untuning?
can you have been untuning?
can they have been untuning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not untune?
can you not untune?
can he not untune?
can we not untune?
can you not untune?
can they not untune? 	can I not be untuning?
can you not be untuning?
can he not be untuning?
can we not be untuning?
can you not be untuning?
can they not be untuning? 	can I not have untuned?
can you not have untuned?
can he not have untuned?
can we not have untuned?
can you not have untuned?
can they not have untuned? 	can I not have been untuning?
can you not have been untuning?
can he not have been untuning?
can we not have been untuning?
can you not have been untuning?
can they not have been untuning?