This is the 7661st most frequent Catalan word.
caminava
"Walked" or "was walking" (imperfect tense of "caminar").
In this sentence, 'caminava' is used to express the past continuous tense describing an ongoing action in the past, specifically walking in the park.
Ell caminava pel parc mentre pensava en el seu futur.
He was walking through the park while thinking about his future.
Here, 'caminava' indicates an action that was happening in the past when another action (it started to rain) interrupted it.
Ahir, quan caminava cap a casa, va començar a ploure.
Yesterday, when I was walking home, it started to rain.
The usage of 'caminava' in this example highlights a calm and ongoing activity of walking conducted in the past.