English verb conjugation
COULD UNTUNE

Regular verb: untune - untuned - untuned

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

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

Interro-negative form

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