He did not feel guilty for not having learned his lesson, for try as he would he positively could not do it. While the teacher was explaining, he believed him and seemed to understand, but as soon as he was left alone he positively could not remember or understand how so short and simple a word as suddenly could be an attribute of the manner of action; but all the same he was sorry he had grieved his teacher.
Mientras su maestro había estado con él, parecíale comprender; pero en cuanto quedó solo no pudo recordar ni entender más que una frase tan breve y obvia como que «de repente» era un modo adverbial; pero comprendió, en todo caso, que había disgustado al maestro.