97. A clause expressing an action or condition as preceding or
anticipating that of the main verb is introduced by "antaux ol":
Mi foriros antaux ol vi venos, I shall depart before you (will) come.
Antaux ol vi riprocxis lin, li ne ploris,
before you reproached him, he did not weep.
Vi ploris antaux ol vi ridis,
you wept before (sooner than) you laughed.