Question

Spanish equivalent

Carmen used to walk to the beach.

Carmen caminamos a la playa.

Carmen caminé a la playa.

Carmen caminaste a la playa.

Carmen caminaba a la playa.

Answer 1

Carmen caminaba a la playa

Answer 2

4th one. Carmen caminaba a la playa.

The first one is using the nosotros form. The second one is using preterite but using the yo form. The third is using the you form.

The 4th one is saying it was a continuos activity and it was talking about a specific person.