https://www.gamestolearnenglish.com/past-tense-game/
https://wordwall.net/es/resource/34131321/simple-past/which-is-the-past-of
https://wordwall.net/es/resource/34704781/crossword-past-simple-verbs
https://wordwall.net/es/resource/20162978/english-file-elementary-4th-edition/past-simple
https://wordwall.net/es/resource/33431071/ingl%c3%a9s/simple-past-regular-and-irregular-verbs
https://agendaweb.org/verbs/to-be-past-exercises.html
https://agendaweb.org/verbs/to-be-past-exercises.html
https://www.liveworksheets.com/es/w/en/english-second-language-esl/70105