Arrepientas comes from the reflexive verb arrepentirse (to regret or repent) and is the second-person singular present subjunctive form.
Shakira sings "Seguramente con el tiempo te arrepientas" to warn that “with time you might regret it.” The subjunctive mood adds a sense of uncertainty and emotional weight, making this word a vivid, less-common conjugation that learners rarely see in everyday vocabulary but will love mastering through the song.
Colombian pop star Shakira lays all her cards on the table in "Última", delivering a final, bittersweet farewell to an ex. She starts by asking for uninterrupted silence to say her piece: "Antes que nada te agradezco lo vivido / Por favor, déjame hablar, no me interrumpas, te lo pido" ("First of all, I thank you for what we lived through / Please let me speak, don't interrupt me, I'm asking you"). Rather than pretending everything was smooth, she pinpoints the exact ways they drifted apart. He wanted wild adventures while she just wanted to stay home on the couch. To describe how incompatible their social circles became, she uses a classic Spanish idiom: "Más fácil era mezclar el agua y el aceite" ("It was easier to mix water and oil"). If you have ever tried to blend oil and water in a cooking bowl, you know they stubbornly separate—just like their friend groups did.
There is a deeply relatable push-and-pull in her honesty. She calls him out for ditching a genuine connection with "¿Cómo es que te cansaste de algo tan genuino?" ("How is it that you got tired of something so genuine?"), while also admitting he accused her of being impossible to please ("para mí todo era poco, insuficiente" ["for me, everything was little, not enough"]). She does not deny that she still misses him in the empty space on her mattress ("un hueco aquí en mi cama" ["a hole here in my bed"]), or that one day either of them might get nostalgic and knock on the other's door. But instead of getting trapped in endless arguments, she draws the line at "nos queda lo aprendido" ("we are left with what we learned"). It hurts, yet she chooses the hard route of being on her own.