Final answer:
The imperfect form of the verb in the sentence 'La maestra estaba en la escuela' is correct.
Step-by-step explanation:
The imperfect form of the verb in the sentence 'La maestra estaba en la escuela' is correct.
The verb 'estaba' is the imperfect form of the verb 'estar', which means 'to be' in English. The imperfect tense is used to describe ongoing or habitual actions in the past. In this case, it indicates that the teacher was currently in the school.
Other examples of verbs in the imperfect tense include: 'yo comía' (I was eating), 'tú jugabas' (you were playing), 'él/ella vivía' (he/she was living).
Learn more about imperfect verb form