{Omnium primum iste qui sit Sosia}i, [hoci dici] volo.
all-N-PL-GEN first-N-S-ACC that-M-S-NOM INTERROG-M-S-NOM be-3-s-SUBJ Sosia-M-S-NOM this-N-S-ACC say-INFIN-PASS want-1-S
First of all, what I want explained is who that Sosia is.