English verb conjugation
COULD ATTUNE

Regular verb: attune - attuned - attuned

Affirmation

Simple form	V-ing form
I could attune you could attune she could attune we could attune you could attune they could attune	I could be attuning you could be attuning she 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 she 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 she 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 she 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 she 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 she 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 she 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 she attune? could we attune? could you attune? could they attune?	could I be attuning? could you be attuning? could she 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 she 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 she 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 she 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 she 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 she 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 she have been attuning? couldn't we have been attuning? couldn't you have been attuning? couldn't they have been attuning?