"Español" is Spanish for "Spanish".
Therefore, "si se español" is not a grammatically correct Spanish phrase. It would be more accurate to say "si es español" which translates to "if it/he/she is Spanish" in English.
Here are some examples of how to use "si es español":
* "Si es español, debe saber hablar español" - "If he/she is Spanish, they should know how to speak Spanish."
* "Si es español, probablemente esté familiarizado con la cultura española." - "If it is Spanish, it is probably familiar with Spanish culture."
* "Si es español, debería ser fácil encontrar un trabajo aquí." - "If it is Spanish, it should be easy to find a job here."