Definition
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before
Before is a preposition that indicates a time or event occurring earlier than another time or event.
Before is a preposition that indicates a time or event occurring earlier than another time or event.
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I always brush my teeth before going to bed.
Siempre me cepillo los dientes antes de ir a la cama.
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Please finish your homework before dinner.
Por favor, termina tu tarea antes de la cena.
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She arrived at the airport two hours before her flight.
Ella llegó al aeropuerto dos horas antes de su vuelo.