How to Say "is wrong" in Spanish
The Spanish word for “is wrong” is “equivoca” — A2 level. This is a very common word in everyday Spanish.

Examples
Ella siempre se equivoca en los cálculos difíciles.
She always makes mistakes in the difficult calculations.
Si usted equivoca el camino, llámenos.
If you (formal) confuse the path, call us.
El informe equivoca los datos de ventas.
The report confuses (misstates) the sales figures.
Reflexive vs. Non-Reflexive
When you want to say 'someone makes a mistake,' you almost always use the reflexive form: 'se equivoca'. If you omit the 'se,' it usually means 'someone confuses something else' (e.g., 'equivoca el nombre').
Spelling Change Rule
To keep the hard 'k' sound of the 'c' in the infinitive, the spelling changes to 'qu' whenever the ending starts with 'e' (like in the preterite 'yo' form or the present subjunctive).
Forgetting 'se'
Mistake: “Él equivoca mucho.”
Correction: Él se equivoca mucho. (The reflexive 'se' is essential when the person is making the mistake themselves.)
Related Translations
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