have toughened
Present perfectconjugation oftoughen.There are other translations for this conjugation.

toughen

We have toughened up the rules on choking and suffocation risks.
Hemos endurecido las normas en lo concerniente a los riesgos de ahogamiento y asfixia.
Several countries have toughened laws.
Varios países han endurecido sus leyes.
Your experiences whilst incarnated upon Earth have toughened you in readiness to serve others, and you are greatly loved and appreciated for having done so.
Vuestras experiencias mientras os habéis encarnado en la Tierra os han curtido en preparación para servir a otros, y ya sois enormemente amados y apreciados por hacerlo.
Her experiences have toughened up her character.
Sus experiencias han endurecido su carácter.
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