  We study the reduction of the Free Differential Algebra (FDA) of D=11
supergravity to an ordinary algebra. We show that in flat background and with
vanishing three-form field strength, the corresponding minimal FDA can be
reduced to an Inonu-Wigner contraction of Sezgin's M-Algebra. We also prove
that in flat background but with a non trivial three-form field strength, the
bosonic FDA can be reduced to the lowest levels of E11. This result suggests
that the E11 symmetries, which act on perturbative states as well, are already
encoded in the D=11 FDA and are made explicit when the theory is formulated on
a enlarged group manifold.
