There are a lot of chirping budgies (mine are too), but that doesn't mean that they will never talk.
Remember that talking budgies are a bit of a rarity, especially the talking titans like Puck, Victor or Sparkie Williams (he was perhaps the one budgie that is most famous for talking nowadays).
Budgies can't be forced to speak our language. It's a slow learning process that asks for a lot of patience. The best thing is to turn it into a game, to make it fun for both you and your little budgie friend!