Final answer:
The correct way to say 'I used to learn' in Spanish is 'aprendía'. This is the imperfect tense of the verb 'aprender' (to learn) in the first-person singular form.
Step-by-step explanation:
The correct way to say 'I used to learn' in Spanish is 'aprendía'. This is the imperfect tense of the verb 'aprender' (to learn) in the first-person singular form. The imperfect tense is used to talk about past actions or habits that occurred repeatedly or over a long period of time.
Learn more about Spanish verb conjugation