I told the gentlemen the doctor would see him shortly, but I think he did not understand.Le dije al señor que el médico lo atendía dentro de poco, pero creo que no entendió.
In the sentence, the judge said he did not understand how someone could commit such an atrocious crime.En la sentencia, el juez dijo que no comprendió cómo alguien podía cometer un crimen tan atroz.
He did not understand what the people were saying, so he had to ask his son to translate.No entendía qué decía la gente, así que tuvo que pedirle a su hijo que le tradujera.
Pedro seemed unaware of his own brilliance. He didn't understand why people made such a big deal of his music.Pedro parecía ignorar su propia brillantez. No comprendía por qué la gente se emocionaba tanto por su música.