All the characters in Star Trek have “Universal Translators” implanted in their brains. Due to large amounts of exposure to hundreds of thousands of languages, and the exposure of all different types of alien life in what would be our everyday lives.
The language structure the alien used was something that no one in the Federation had ever seen before.
That’s why all the aliens speak English. Just FYI.
I thought it was because they all went to the same schools ;-)
That explains why I can’t understand Jenteal. I need the universal translator.