English verb conjugation
MUST OUTSPRING

Irregular verb: outspring - outsprang - outsprung

Affirmation

Simple form	V-ing form
I must outspring you must outspring she must outspring we must outspring you must outspring they must outspring	I must be outspringing you must be outspringing she must be outspringing we must be outspringing you must be outspringing they must be outspringing
Perfect	V-ing perfect
I must have outsprung you must have outsprung she must have outsprung we must have outsprung you must have outsprung they must have outsprung	I must have been outspringing you must have been outspringing she must have been outspringing we must have been outspringing you must have been outspringing they must have been outspringing

Negation

Simple form	V-ing form
I mustn't outspring you mustn't outspring she mustn't outspring we mustn't outspring you mustn't outspring they mustn't outspring	I mustn't be outspringing you mustn't be outspringing she mustn't be outspringing we mustn't be outspringing you mustn't be outspringing they mustn't be outspringing
Perfect	V-ing perfect
I mustn't have outsprung you mustn't have outsprung she mustn't have outsprung we mustn't have outsprung you mustn't have outsprung they mustn't have outsprung	I mustn't have been outspringing you mustn't have been outspringing she mustn't have been outspringing we mustn't have been outspringing you mustn't have been outspringing they mustn't have been outspringing

Interrogative form

Simple form	V-ing form
must I outspring? must you outspring? must she outspring? must we outspring? must you outspring? must they outspring?	must I be outspringing? must you be outspringing? must she be outspringing? must we be outspringing? must you be outspringing? must they be outspringing?
Perfect	V-ing perfect
must I have outsprung? must you have outsprung? must she have outsprung? must we have outsprung? must you have outsprung? must they have outsprung?	must I have been outspringing? must you have been outspringing? must she have been outspringing? must we have been outspringing? must you have been outspringing? must they have been outspringing?

Interro-negative form

Simple form	V-ing form
mustn't I outspring? mustn't you outspring? mustn't she outspring? mustn't we outspring? mustn't you outspring? mustn't they outspring?	mustn't I be outspringing? mustn't you be outspringing? mustn't she be outspringing? mustn't we be outspringing? mustn't you be outspringing? mustn't they be outspringing?
Perfect	V-ing perfect
mustn't I have outsprung? mustn't you have outsprung? mustn't she have outsprung? mustn't we have outsprung? mustn't you have outsprung? mustn't they have outsprung?	mustn't I have been outspringing? mustn't you have been outspringing? mustn't she have been outspringing? mustn't we have been outspringing? mustn't you have been outspringing? mustn't they have been outspringing?