to fight (to use force or weapons against persons or large groups of people who also use force or weapons in order to cause them to give up resistance) [with przeciw (+ dative) ‘against whom’] [with z (+ instrumental) ‘with whom’] [with o (+ accusative) ‘for/over what’]
to fight with (to participate in a sports competition or competition conducted for someone else's entertainment)
to fight with (to strive to defeat an opponent in some dispute or rivalry)
to fight for (to strive to eliminate; to strive to to obtain something) [with o (+ accusative) ‘for whom/what’]
to fight for (to try to win the favor of some people)
to fight (to oppose one another)
to fight against (to counteract)
to fight oneself (to resist ones needs)
to fight for (to strive to achieve)
to fight for (to defend)
(obsolete) to fight off, to overcome (to succeed in fighting)