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) [+ przeciw (dative) = against whom] [+ z (instrumental) = with whom] [+ o (accusative) = for/over what] [+ za (accusative) = for (the benefit) whom/what]
to fight with (to participate in a sports competition or competition conducted for someone else's entertainment) [+ z (instrumental) = with whom]
to fight with (to strive to defeat an opponent in some dispute or rivalry) [+ z (instrumental) = with whom]
to fight for (to strive to eliminate; to strive to to obtain something) [+ o (accusative) = for whom/what] [+ z (instrumental) = with what]
to fight for (to try to win the favor of some people) [+ o (accusative) = for what]
to fight (to oppose one another) [+ z (instrumental) = with what]
to fight against (to counteract)
to fight oneself (to resist ones needs)
to fight for (to strive to achieve)
to fight for (to defend) [+ o (accusative) = for what]
(obsolete) to fight off, to overcome (to succeed in fighting)