Answer:
Corrigen
What is conjugation?
Conjugation occurs when a speaker or writer converts a verb to its accepted format based on the subject and the tense in which it is being spoken.
The conjugation table for verbs ending in -ir is inserted below.
Conjugations for corregir
Personal pronoun Conjugation
Yo corrijo
Tú corriges
Él/ella/usted corrige
Nosotros corregimos
Vosotros corregís
Ellos/ellas/ustedes corrigen
Translate
We are given the sentence "Las profesoras (blank) muchos exámenes."
We are asked to conjugate the action verb "corregir" to fit the sentence.
The translation of this sentence is "The professors (blank) many exams."
We also need to translate "corregir," which means "to correct" in Spanish.
Conjugate
For each subject, the action verb is conjugated based on who the verb represents.
Yo I/me
Tú You
Él/ella/usted They (singular)
Nosotros We
Vosotros Yourselves
Ellos/ellas/ustedes Them (plural)
Therefore, we must look at the subject of the sentence: las profesoras.
This is a plural identification and is not referring to the professors directly. Therefore, this is an instance of plural identification - thus meaning the subject is ellos/ellas/ustedes.
This means that the conjugation of corregir will be conjugated as corrigen.