SIMPLE PAST (REGULAR VERBS)

http://www.learnenglishfeelgood.com/sp/pasado-simple-ingles2.html

http://first-english.org/english_learning/english_tenses/simple_past/2/06_english_simple_past.htm

https://learnenglishteens.britishcouncil.org/grammar-vocabulary/grammar-videos/past-simple-regular-verbs