4 (expressing preference)
I would (just) as soon not go preferiría no ir
I would (just) as soon he didn't know preferiría que él no lo supiera
she'd marry him as soon as not se casaría con él y tan contenta
→
sooner
AS SOON AS
As with other time conjunctions, en cuanto and tan pronto como are used with the subjunctive if the action which follows hasn't happened yet or hadn't happened at the time of speaking:
As soon as or The moment we finish, I've got to write an editorial En cuanto terminemos or Tan pronto como terminemos, tengo que escribir un editorial
As soon as I know the dates, I'll let you know En cuanto sepa or Tan pronto como sepa las fechas, te lo diré
En cuanto and tan pronto como are used with the indicative when the action in the time clause has already taken place:
He left the podium as soon as or the moment he received his prize Se bajó del podio en cuanto recibió or tan pronto como recibió el premio
En cuanto and tan pronto como are also used with the indicative when describing habitual actions:
As soon as any faxes arrive, they're put in a special box En cuanto llegan or Tan pronto como llegan los faxes, se guardan en una caja especial