Conjugación del verbo inglés
MUST UPSPRING

Verbo irregular: upspring - upsprang, upsprung - upsprung

Afirmación

Forma simple	Forma con V-ing
I must upspring you must upspring she must upspring we must upspring you must upspring they must upspring	I must be upspringing you must be upspringing she must be upspringing we must be upspringing you must be upspringing they must be upspringing
Perfecto	Perfecto con V-ing
I must have upsprung you must have upsprung she must have upsprung we must have upsprung you must have upsprung they must have upsprung	I must have been upspringing you must have been upspringing she must have been upspringing we must have been upspringing you must have been upspringing they must have been upspringing

Negación

Forma simple	Forma con V-ing
I must not upspring you must not upspring she must not upspring we must not upspring you must not upspring they must not upspring	I must not be upspringing you must not be upspringing she must not be upspringing we must not be upspringing you must not be upspringing they must not be upspringing
Perfecto	Perfecto con V-ing
I must not have upsprung you must not have upsprung she must not have upsprung we must not have upsprung you must not have upsprung they must not have upsprung	I must not have been upspringing you must not have been upspringing she must not have been upspringing we must not have been upspringing you must not have been upspringing they must not have been upspringing

Forma interrogativa

Forma simple	Forma con V-ing
must I upspring? must you upspring? must she upspring? must we upspring? must you upspring? must they upspring?	must I be upspringing? must you be upspringing? must she be upspringing? must we be upspringing? must you be upspringing? must they be upspringing?
Perfecto	Perfecto con V-ing
must I have upsprung? must you have upsprung? must she have upsprung? must we have upsprung? must you have upsprung? must they have upsprung?	must I have been upspringing? must you have been upspringing? must she have been upspringing? must we have been upspringing? must you have been upspringing? must they have been upspringing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not upspring? must you not upspring? must she not upspring? must we not upspring? must you not upspring? must they not upspring?	must I not be upspringing? must you not be upspringing? must she not be upspringing? must we not be upspringing? must you not be upspringing? must they not be upspringing?
Perfecto	Perfecto con V-ing
must I not have upsprung? must you not have upsprung? must she not have upsprung? must we not have upsprung? must you not have upsprung? must they not have upsprung?	must I not have been upspringing? must you not have been upspringing? must she not have been upspringing? must we not have been upspringing? must you not have been upspringing? must they not have been upspringing?