English verb conjugation
COULD UNLEARN

Regular verb: unlearn - unlearned - unlearned

Affirmation

Simple form	V-ing form
I could unlearn you could unlearn he could unlearn we could unlearn you could unlearn they could unlearn	I could be unlearning you could be unlearning he could be unlearning we could be unlearning you could be unlearning they could be unlearning
Perfect	V-ing perfect
I could have unlearned you could have unlearned he could have unlearned we could have unlearned you could have unlearned they could have unlearned	I could have been unlearning you could have been unlearning he could have been unlearning we could have been unlearning you could have been unlearning they could have been unlearning

Negation

Simple form	V-ing form
I could not unlearn you could not unlearn he could not unlearn we could not unlearn you could not unlearn they could not unlearn	I could not be unlearning you could not be unlearning he could not be unlearning we could not be unlearning you could not be unlearning they could not be unlearning
Perfect	V-ing perfect
I could not have unlearned you could not have unlearned he could not have unlearned we could not have unlearned you could not have unlearned they could not have unlearned	I could not have been unlearning you could not have been unlearning he could not have been unlearning we could not have been unlearning you could not have been unlearning they could not have been unlearning

Interrogative form

Simple form	V-ing form
could I unlearn? could you unlearn? could he unlearn? could we unlearn? could you unlearn? could they unlearn?	could I be unlearning? could you be unlearning? could he be unlearning? could we be unlearning? could you be unlearning? could they be unlearning?
Perfect	V-ing perfect
could I have unlearned? could you have unlearned? could he have unlearned? could we have unlearned? could you have unlearned? could they have unlearned?	could I have been unlearning? could you have been unlearning? could he have been unlearning? could we have been unlearning? could you have been unlearning? could they have been unlearning?

Interro-negative form

Simple form	V-ing form
could I not unlearn? could you not unlearn? could he not unlearn? could we not unlearn? could you not unlearn? could they not unlearn?	could I not be unlearning? could you not be unlearning? could he not be unlearning? could we not be unlearning? could you not be unlearning? could they not be unlearning?
Perfect	V-ing perfect
could I not have unlearned? could you not have unlearned? could he not have unlearned? could we not have unlearned? could you not have unlearned? could they not have unlearned?	could I not have been unlearning? could you not have been unlearning? could he not have been unlearning? could we not have been unlearning? could you not have been unlearning? could they not have been unlearning?