as soon as ... arrives
Tan pronto como llegue se lo diré.
As soon as I arrive, I'll tell him/her.
Tan pronto como llegue, nos vamos.
As soon as I arrive, we're leaving.
Tan pronto como llegue ella, comenzaremos.
As soon as she arrives, we'll begin.
Tomás comerá tan pronto como llegue a casa.
Tomás will eat as soon as he gets home.
Te llamaré tan pronto como llegue a la estación.
I’ll call you as soon as I get to the station.
Te enviaré un mensaje de texto tan pronto como llegue al aeropuerto.
I’ll text you as soon as I get to the airport.
Tan pronto como llegue, me preguntará por qué estoy aquí en Lipo.
As soon as I arrive, she'll ask me why I'm here in Lipo.
— Decision to Leave (2022)