Antes de salir, revisa tus cosas.
English: Before leaving, check your things.
In Spanish, 'formas no personales del verbo' are verb forms that do not change according to the subject or tense. In subordinate clauses, these forms (infinitive, gerund, participle) allow you to connect ideas without using a full conjugated verb.
These forms are used in Spanish to express actions related to the main verb, such as expressing purpose, cause, condition, or time. They often appear after prepositions or in phrases where the subject is the same as the main clause.
Antes de salir, revisa tus cosas.
English: Before leaving, check your things.
Al terminar de comer, nos fuimos.
English: After finishing eating, we left.
Viendo la lluvia, decidimos quedarnos en casa.
English: Seeing the rain, we decided to stay at home.
He visto a Juan corriendo en el parque.
English: I have seen Juan running in the park.
Terminada la reunión, todos se marcharon.
English: Once the meeting was finished, everyone left.