he entristecido
Antepresente para el sujeto yo del verbo entristecer.

entristecer

Después de su exposición me he quedado sin preguntas y me he entristecido.
After his explanations I have remained without questions and saddened.
He estado contenta para las felicidades, pero me he entristecido por su mala salud.
I/you/they have been happy for the wishes, but I/you/they are saddened for his bad health.
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