A partial wave analysis of BES J/ψ->γ(ηπ + π - ) data has been performed in the mass region 1.1 to 2.0 GeV. A peak is observed due to η(1440) in the ηπ + π - invariant mass distribution; J P =0 - is preferred over 1 + . Its mass is M=1385+/-7 MeV and it decays into both ησ and a 0 (980)π, with BR[a 0 (980)π, a 0 ->ηπ/ησ]=0.70+/-0.12(stat)+/-0.20(syst). Destructive interference between the two decay modes is observed. In addition, in the higher ηπ + π - mass region, there is a definite 2 - + signal, with M=1840+/-15 MeV and Γ=170+/-40 MeV and an additional 0 - + signal at 1760+/-35 MeV. We also find a possible contribution from a 1 + + signal decaying dominantly through a 0 (980)π; its mass and width are fitted to be M=1505+/-20 MeV and Γ=130 - 2 0 + 5 0 MeV.