Questions & Answers about Si tienes alguna pregunta, levanta la mano.
Why is there a comma after the si-clause?
Why is si not written sí with an accent?
Why is it tienes (present indicative) and not tengas (subjunctive)?
With real or likely conditions, Spanish uses si + present indicative and then a main clause in the imperative or future: Si tienes… levanta…. The subjunctive (tengas) isn’t used after si in this type of real condition.
What form is levanta?
It’s the affirmative tú imperative of levantar. For -ar verbs, the affirmative tú command looks like the 3rd person singular present: (tú) levanta.