Final answer:
To construct the proper form of the Spanish verb 'visitar' for different situations: repeated visits, ongoing visitation in the past, and a single completed visit in the past.
Step-by-step explanation:
To construct the proper form of the Spanish verb visitar for the given situations:
- Manuel visited with his friend often - The proper form is: Manuel visitaba a menudo a su amigo. Here, the imperfect past tense visitaba is used to convey a repeated action in the past.
- He was visiting his friend when lightning struck him - The proper form is: Estaba visitando a su amigo cuando un rayo lo alcanzó. Here, the imperfect past tense estaba visitando is used to indicate an ongoing action in the past.
- He visited his friend once when it was winter - The proper form is: Visitó a su amigo una vez cuando era invierno. Here, the preterite past tense visitó is used to convey a single completed action in the past.
Learn more about Spanish verb conjugation