  Recently a new class of monogamy relations (actually, exponentially many) was
provided by Christopher Eltschka et al. in terms of squared concurrence. Their
approach restricted to the distribution of bipartite entanglement shared
between different subsystems of a global state. We have critically analyzed
those monogamy relations in three as well as in four qubit pure states using
squared negativity. We have been able to prove that in case of pure three qubit
states those relations are always true in terms of squared negativity. However,
if we consider the pure four qubit states, the results are not always true.
Rather, we find opposite behaviour in some particular classes of four qubit
pure states where some of the monogamy relations are violated. We have provided
analytical and numerical evidences in support of our claim.
