I'd like to know where in the Bible it says that when you are filled with the Holy Ghost, you speak in tongues. There is no recorded instance in the gospels where Jesus or John the Baptist ever spoke in tongues, yet the Bible says clearly that they were filled with the Holy Spirit.
I suggest you prayerfully and deeply study 1 Corinthians 12-14 before trying to learn more about speaking in tongues, because there are many counterfeit manifestations of speaking in tongues in many churches. In many instances, people whose native language was the language in which the person spoke in tongues, have said that the person was blaspheming God, saying things like, "Lucifer is king! Let us worship and bown down to him!" I'm not saying that speaking in tongues is totally of the devil. It is not, but he has a counterfeit out there that has deceived many. Not all people who have the Holy Spirit speak in tongues, just like not all are teachers, not all have the gift of wisdom, and not all have the gift of discernment. Again, I strongly suggest that you study 1 Corinthians 12-14 prayerfully.
God Bless you