English verb conjugation
MUST OUTBURN

Regular verb: outburn - outburned - outburned

Affirmation

Simple form	V-ing form
I must outburn you must outburn he must outburn we must outburn you must outburn they must outburn	I must be outburning you must be outburning he must be outburning we must be outburning you must be outburning they must be outburning
Perfect	V-ing perfect
I must have outburned you must have outburned he must have outburned we must have outburned you must have outburned they must have outburned	I must have been outburning you must have been outburning he must have been outburning we must have been outburning you must have been outburning they must have been outburning

Negation

Simple form	V-ing form
I mustn't outburn you mustn't outburn he mustn't outburn we mustn't outburn you mustn't outburn they mustn't outburn	I mustn't be outburning you mustn't be outburning he mustn't be outburning we mustn't be outburning you mustn't be outburning they mustn't be outburning
Perfect	V-ing perfect
I mustn't have outburned you mustn't have outburned he mustn't have outburned we mustn't have outburned you mustn't have outburned they mustn't have outburned	I mustn't have been outburning you mustn't have been outburning he mustn't have been outburning we mustn't have been outburning you mustn't have been outburning they mustn't have been outburning

Interrogative form

Simple form	V-ing form
must I outburn? must you outburn? must he outburn? must we outburn? must you outburn? must they outburn?	must I be outburning? must you be outburning? must he be outburning? must we be outburning? must you be outburning? must they be outburning?
Perfect	V-ing perfect
must I have outburned? must you have outburned? must he have outburned? must we have outburned? must you have outburned? must they have outburned?	must I have been outburning? must you have been outburning? must he have been outburning? must we have been outburning? must you have been outburning? must they have been outburning?

Interro-negative form

Simple form	V-ing form
mustn't I outburn? mustn't you outburn? mustn't he outburn? mustn't we outburn? mustn't you outburn? mustn't they outburn?	mustn't I be outburning? mustn't you be outburning? mustn't he be outburning? mustn't we be outburning? mustn't you be outburning? mustn't they be outburning?
Perfect	V-ing perfect
mustn't I have outburned? mustn't you have outburned? mustn't he have outburned? mustn't we have outburned? mustn't you have outburned? mustn't they have outburned?	mustn't I have been outburning? mustn't you have been outburning? mustn't he have been outburning? mustn't we have been outburning? mustn't you have been outburning? mustn't they have been outburning?