can anyone please say me how can i teach fly to my pokes?

You have to defeat zapmolcuno's articuno to get the move fly.
Use blizzard on zapdos, boltstrike on moltress, use v-create on articuno. If you have the move toxic, then only you can defeat it. Golett/golurks are nice to this job. The nightshade is the only move by zapdos will faint your golurk. Moltres had toxic and fireblast. And articuno had ice beam, waterfall, and fly. In which pokemon you beat articuno will get the move fly...! Hope its helped to you