We report measurements of the charmless semileptonic decays B-0 -> pi(-)/rho(-)l(+)nu and B+ -> pi(0)/rho(0)l(+)nu, based on a sample of 2.75 x 10(8) BB events collected at the Y(4S) resonance with the Belle detector at the KEKB e(+)e(-) asymmetric collid