The Spanish verb 'aprender' is conjugated in the preterit tense with the form 'aprendieron' for the subject 'Ellos'.
Conjugate the verbs into the Preterit tense:
In Spanish, the preterite tense is used to describe actions that were completed in the past. The conjugation 'aprendieron' corresponds to the subject 'Ellos' (They) performing the action of learning Spanish.
When conjugating verbs, it is important to consider the subject of the sentence and match the verb form accordingly to denote the correct tense and agreement.
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