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"Nada" is a form of "nadar", an intransitive verb which is often translated as "to swim". "Tu" is a form of "tu", an adjective which is often translated as "your". Learn more about the difference between "nada" and "tu" below.
nadar()
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
tu()
An adjective is a word that describes a noun (e.g., the big dog).
1. (informal) (possessive)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
