English verb conjugation
MUST UNLEARN

Regular verb: unlearn - unlearned - unlearned

Affirmation

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

Negation

Simple form	V-ing form
I mustn't unlearn you mustn't unlearn he mustn't unlearn we mustn't unlearn you mustn't unlearn they mustn't unlearn	I mustn't be unlearning you mustn't be unlearning he mustn't be unlearning we mustn't be unlearning you mustn't be unlearning they mustn't be unlearning
Perfect	V-ing perfect
I mustn't have unlearned you mustn't have unlearned he mustn't have unlearned we mustn't have unlearned you mustn't have unlearned they mustn't have unlearned	I mustn't have been unlearning you mustn't have been unlearning he mustn't have been unlearning we mustn't have been unlearning you mustn't have been unlearning they mustn't have been unlearning

Interrogative form

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

Interro-negative form

Simple form	V-ing form
mustn't I unlearn? mustn't you unlearn? mustn't he unlearn? mustn't we unlearn? mustn't you unlearn? mustn't they unlearn?	mustn't I be unlearning? mustn't you be unlearning? mustn't he be unlearning? mustn't we be unlearning? mustn't you be unlearning? mustn't they be unlearning?
Perfect	V-ing perfect
mustn't I have unlearned? mustn't you have unlearned? mustn't he have unlearned? mustn't we have unlearned? mustn't you have unlearned? mustn't they have unlearned?	mustn't I have been unlearning? mustn't you have been unlearning? mustn't he have been unlearning? mustn't we have been unlearning? mustn't you have been unlearning? mustn't they have been unlearning?