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"En" is a form of "en", a preposition which is often translated as "in". "Tú" is a form of "tú", a pronoun which is often translated as "you". Learn more about the difference between "en" and "tú" below.
en(
ehn
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
tú(
too
)A pronoun is a word that stands in for a noun (e.g., she).
1. (informal) (second person singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).