sustituían

Verb

form-of imperfect indicative plural third-person

sustituirの三人称複数未完了直説法

English Meaning

third-person plural imperfect indicative of sustituir

En el colegio, los maestros sustituían a sus colegas enfermos durante las clases.

学校では、教師たちが授業中に病気の同僚の代わりをしていました。

At the school, the teachers were substituting for their sick colleagues during classes.