I need to be like him.
In English, "knowing" a language is rather unusual. You "speak" a language.
I'm a native English speaker (American) and I often hear people say they know a language.
Yes, we have both "speaks" and "knows" as accepted answers. Thanks for your input.
No, 'knowing' a language is perfectly good usage. I use it.
Yes, "speaks" is now accepted as correct. Thank you.
"My godfather can speak five foreign languages"?
At the same time!
Random curiosity: What is the name of the film "The Godfather" in greek?
Yup, you guessed it:
"Ο Νονός "
"Ο Νονός ΙΙ"