  We analyse the very-extended Kac-Moody algebras as representations in terms
of certain A_d subalgebras and find the generators at low levels. Our results
for low levels agree precisely with the bosonic field content of the theories
containing gravity, forms and scalars which upon reduction to three dimensions
can be described by a non-linear realisation. We explain how the Dynkin
diagrams of the very-extended algebras encode information about the field
content and generalised T-duality transformations.
