Final answer:
The imperfect form of the verb in the sentence 'Teníamos que practicar baloncesto todos los días' is correct.
Step-by-step explanation:
The imperfect form of the verb in the sentence "Teníamos que practicar baloncesto todos los días" is correct.
In Spanish, the imperfect tense is used to talk about ongoing or habitual actions in the past. In this sentence, "teníamos" is the imperfect form of the verb tener, and it correctly conveys the idea of an ongoing habit of having to practice basketball every day.
Another example of the use of the imperfect tense is "Yo jugaba al fútbol todos los fines de semana" (I used to play soccer every weekend). Here, "jugaba" is the imperfect form of the verb jugar, indicating a past habitual action.
Learn more about Imperfect verb tense in Spanish