English verb conjugation
CAN UNTUNE

Regular verb: untune - untuned - untuned

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?