Usually, a front derailleur is "locked into place" this is accomplished by tightening the adjustment screws down so the derailleur doesn't move. To free it, loosen the screws. If they are loose and it just doesn't move, its rusted or broken, take this situation to the nearest bike shop for repair.
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Usually, a front derailleur is "locked into place" this is accomplished by tightening the adjustment screws down so the derailleur doesn't move. To free it, loosen the screws. If they are loose and it just doesn't move, its rusted or broken, take this situation to the nearest bike shop for repair.