Can we pray that the Holy Spirit will give us the gift of tongue permanently?
No, we cannot pray against His will. He is the Lord of the gifts. We cannot take over His position to be the boss of the gift so that we can speak in tongue anytime we like. Yet there are believers who want to usurp the authority of the Holy Spirit to speak by faith anytime they like. They have a pretext from the Bible (taken out of context) to back up for their action. It is taken from 1Cor. 14:15, “”So what shall I do? I will pray with my spirit (in tongue) and I will pray with my mind and I will sing with my spirit and I will sing with my mind.” They say “It is clear, I have to do the praying and singing. I can do it independent of the Holy Spirit.” And they further explain that the tongue is a heavenly language and a holy language. They can use it to edify themselves, to cast out the devil, heal the sick and intercede for people.