después de que‘after’
en cuanto‘as soon as’
hasta que‘until’
mientras‘while’
siempre que‘whenever’NOTE (1) Antes de que always takes the subjunctive (see 18.2.2).
(2) Cuando,desde que and después de que are sometimes used with the -ra form of the past
subjunctive when they relate to a past situation (see 17.9,17.10,18.2.2).
(3) Siempre que takes the subjunctive when it expresses a hypothesis (see 18.2.3).For examples of some of these usages see 18.2.2.CONJUNCTIONS 27.2