English verb conjugation
MUST RETUNE

Regular verb: retune - retuned - retuned

Affirmation

Simple form	V-ing form
I must retune you must retune he must retune we must retune you must retune they must retune	I must be retuning you must be retuning he must be retuning we must be retuning you must be retuning they must be retuning
Perfect	V-ing perfect
I must have retuned you must have retuned he must have retuned we must have retuned you must have retuned they must have retuned	I must have been retuning you must have been retuning he must have been retuning we must have been retuning you must have been retuning they must have been retuning

Negation

Simple form	V-ing form
I mustn't retune you mustn't retune he mustn't retune we mustn't retune you mustn't retune they mustn't retune	I mustn't be retuning you mustn't be retuning he mustn't be retuning we mustn't be retuning you mustn't be retuning they mustn't be retuning
Perfect	V-ing perfect
I mustn't have retuned you mustn't have retuned he mustn't have retuned we mustn't have retuned you mustn't have retuned they mustn't have retuned	I mustn't have been retuning you mustn't have been retuning he mustn't have been retuning we mustn't have been retuning you mustn't have been retuning they mustn't have been retuning

Interrogative form

Simple form	V-ing form
must I retune? must you retune? must he retune? must we retune? must you retune? must they retune?	must I be retuning? must you be retuning? must he be retuning? must we be retuning? must you be retuning? must they be retuning?
Perfect	V-ing perfect
must I have retuned? must you have retuned? must he have retuned? must we have retuned? must you have retuned? must they have retuned?	must I have been retuning? must you have been retuning? must he have been retuning? must we have been retuning? must you have been retuning? must they have been retuning?

Interro-negative form

Simple form	V-ing form
mustn't I retune? mustn't you retune? mustn't he retune? mustn't we retune? mustn't you retune? mustn't they retune?	mustn't I be retuning? mustn't you be retuning? mustn't he be retuning? mustn't we be retuning? mustn't you be retuning? mustn't they be retuning?
Perfect	V-ing perfect
mustn't I have retuned? mustn't you have retuned? mustn't he have retuned? mustn't we have retuned? mustn't you have retuned? mustn't they have retuned?	mustn't I have been retuning? mustn't you have been retuning? mustn't he have been retuning? mustn't we have been retuning? mustn't you have been retuning? mustn't they have been retuning?