We  present preliminary  results on  semileptonic $B$  decays obtained
with the BABAR detector.  The  large dataset accumulated at the PEP-II
asymmetric-energy  $B$  Factory allows  a  new measurement  technique,
where  one fully  reconstructed B  meson decays  hadronically  and the
recoiling   $B$   decays   semileptonically.    Traditional   analysis
techniques complement this approach  of tagging $B\bar{B}$ events with
semileptonic $B$  decays.  The analyses  aim at determinations  of the
CKM matrix  elements $|V_{cb}|$,  $|V_{ub}|$, and parameters  of Heavy
Quark Effective Theory.