THE Liberal Party will meet Governor Chris Patten to urge him to persuade Britain to handle electoral arrangements for the 1994 and 1995 elections separately. The party's chairman, Allen Lee Peng-fei, said at Kai Tak airport yesterday on his return from China that a delegation from his party had told the Chinese Government that the electoral arrangements for 1994 and 1995 elections could be handled separately. ''We can first handle the voting age and single-seat, single-vote issues, and whether there would be appointed district board members in 1994. Then the two sides would have more time to discuss functional constituencies and an Election Committee for the 1995 elections,'' he said. ''We just can't see why the electoral arrangements cannot be handled separately. Although the British side does not want to, they still need to convince the public why not,'' he said.