English verb conjugation
COULD ATTUNE

Regular verb: attune - attuned - attuned

Affirmation

Simple form	V-ing form
I could attune you could attune he could attune we could attune you could attune they could attune	I could be attuning you could be attuning he could be attuning we could be attuning you could be attuning they could be attuning
Perfect	V-ing perfect
I could have attuned you could have attuned he could have attuned we could have attuned you could have attuned they could have attuned	I could have been attuning you could have been attuning he could have been attuning we could have been attuning you could have been attuning they could have been attuning

Negation

Simple form	V-ing form
I couldn't attune you couldn't attune he couldn't attune we couldn't attune you couldn't attune they couldn't attune	I couldn't be attuning you couldn't be attuning he couldn't be attuning we couldn't be attuning you couldn't be attuning they couldn't be attuning
Perfect	V-ing perfect
I couldn't have attuned you couldn't have attuned he couldn't have attuned we couldn't have attuned you couldn't have attuned they couldn't have attuned	I couldn't have been attuning you couldn't have been attuning he couldn't have been attuning we couldn't have been attuning you couldn't have been attuning they couldn't have been attuning

Interrogative form

Simple form	V-ing form
could I attune? could you attune? could he attune? could we attune? could you attune? could they attune?	could I be attuning? could you be attuning? could he be attuning? could we be attuning? could you be attuning? could they be attuning?
Perfect	V-ing perfect
could I have attuned? could you have attuned? could he have attuned? could we have attuned? could you have attuned? could they have attuned?	could I have been attuning? could you have been attuning? could he have been attuning? could we have been attuning? could you have been attuning? could they have been attuning?

Interro-negative form

Simple form	V-ing form
couldn't I attune? couldn't you attune? couldn't he attune? couldn't we attune? couldn't you attune? couldn't they attune?	couldn't I be attuning? couldn't you be attuning? couldn't he be attuning? couldn't we be attuning? couldn't you be attuning? couldn't they be attuning?
Perfect	V-ing perfect
couldn't I have attuned? couldn't you have attuned? couldn't he have attuned? couldn't we have attuned? couldn't you have attuned? couldn't they have attuned?	couldn't I have been attuning? couldn't you have been attuning? couldn't he have been attuning? couldn't we have been attuning? couldn't you have been attuning? couldn't they have been attuning?