English verb conjugation
MUST OUTSPRING

Irregular verb: outspring - outsprang - outsprung

Affirmation

Simple form	V-ing form
I must outspring you must outspring he must outspring we must outspring you must outspring they must outspring	I must be outspringing you must be outspringing he 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 he 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 he 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 must not outspring you must not outspring he must not outspring we must not outspring you must not outspring they must not outspring	I must not be outspringing you must not be outspringing he must not be outspringing we must not be outspringing you must not be outspringing they must not be outspringing
Perfect	V-ing perfect
I must not have outsprung you must not have outsprung he must not have outsprung we must not have outsprung you must not have outsprung they must not have outsprung	I must not have been outspringing you must not have been outspringing he must not have been outspringing we must not have been outspringing you must not have been outspringing they must not have been outspringing

Interrogative form

Simple form	V-ing form
must I outspring? must you outspring? must he outspring? must we outspring? must you outspring? must they outspring?	must I be outspringing? must you be outspringing? must he 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 he 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 he 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
must I not outspring? must you not outspring? must he not outspring? must we not outspring? must you not outspring? must they not outspring?	must I not be outspringing? must you not be outspringing? must he not be outspringing? must we not be outspringing? must you not be outspringing? must they not be outspringing?
Perfect	V-ing perfect
must I not have outsprung? must you not have outsprung? must he not have outsprung? must we not have outsprung? must you not have outsprung? must they not have outsprung?	must I not have been outspringing? must you not have been outspringing? must he not have been outspringing? must we not have been outspringing? must you not have been outspringing? must they not have been outspringing?