  We construct SU(N) irreducible Schwinger bosons satisfying certain U(N-1)
constraints which implement the symmetries of SU(N) Young tableaues. As a
result all SU(N) irreducible representations are simple monomials of $(N-1)$
types of SU(N) irreducible Schwinger bosons. Further, we show that these
representations are free of multiplicity problems. Thus all SU(N)
representations are made as simple as SU(2).
