English verb conjugation
MUST UPSWING

Irregular verb: upswing - upswung - upswung

Affirmation

Simple form	V-ing form
I must upswing you must upswing he must upswing we must upswing you must upswing they must upswing	I must be upswinging you must be upswinging he must be upswinging we must be upswinging you must be upswinging they must be upswinging
Perfect	V-ing perfect
I must have upswung you must have upswung he must have upswung we must have upswung you must have upswung they must have upswung	I must have been upswinging you must have been upswinging he must have been upswinging we must have been upswinging you must have been upswinging they must have been upswinging

Negation

Simple form	V-ing form
I must not upswing you must not upswing he must not upswing we must not upswing you must not upswing they must not upswing	I must not be upswinging you must not be upswinging he must not be upswinging we must not be upswinging you must not be upswinging they must not be upswinging
Perfect	V-ing perfect
I must not have upswung you must not have upswung he must not have upswung we must not have upswung you must not have upswung they must not have upswung	I must not have been upswinging you must not have been upswinging he must not have been upswinging we must not have been upswinging you must not have been upswinging they must not have been upswinging

Interrogative form

Simple form	V-ing form
must I upswing? must you upswing? must he upswing? must we upswing? must you upswing? must they upswing?	must I be upswinging? must you be upswinging? must he be upswinging? must we be upswinging? must you be upswinging? must they be upswinging?
Perfect	V-ing perfect
must I have upswung? must you have upswung? must he have upswung? must we have upswung? must you have upswung? must they have upswung?	must I have been upswinging? must you have been upswinging? must he have been upswinging? must we have been upswinging? must you have been upswinging? must they have been upswinging?

Interro-negative form

Simple form	V-ing form
must I not upswing? must you not upswing? must he not upswing? must we not upswing? must you not upswing? must they not upswing?	must I not be upswinging? must you not be upswinging? must he not be upswinging? must we not be upswinging? must you not be upswinging? must they not be upswinging?
Perfect	V-ing perfect
must I not have upswung? must you not have upswung? must he not have upswung? must we not have upswung? must you not have upswung? must they not have upswung?	must I not have been upswinging? must you not have been upswinging? must he not have been upswinging? must we not have been upswinging? must you not have been upswinging? must they not have been upswinging?