  Recently, many efforts are being put in studying three-hadron systems made of
mesons and baryons and interesting results are being found. In this talk, I
summarize the main features of the formalism used to study such three hadron
systems with strangeness $S=-1,0$ within a framework built on the basis of
unitary chiral theories and solution of the Faddeev equations. In particular, I
present the results obtained for the $\pi\bar{K}N$, $K\bar{K}N$ and $KK\bar{K}$
systems and their respective coupled channels. In the first case, we find four
$\Sigma$'s and two $\Lambda$'s with spin-parity $J^P=1/2^+$, in the 1500-1800
MeV region, as two meson-one baryon s-wave resonances. In the second case, a
$1/2^+$ $N^*$ around 1900 MeV is found. For the last one a kaon close to 1420
MeV is formed, which can be identified with K(1460).
