"to avail"
How do you say that in Spanish?
2 Answers
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To avail yourself of something is to take advantage of something. Often aprovechar(se) is a good fit.
Juan se aprovechó de las debilidaded de Pedro. John availed himself of/took advantage of Peter's weaknesses.
Deberías aprovechar esta oportunidad. You should avail yourself/take advantage of this chance.
'To no avail' is a saying that is the equivalent of 'en vano'.