Extra exercises
- https://agendaweb.org/exercises/verbs/past-simple-regular
- https://agendaweb.org/exercises/verbs/past-simple-regular-d-ed-ied.htm
- http://www.adelescorner.org/grammar/past_tense/past_regular.html
- https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_statements.htm
- https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_statements2.htm
- https://www.perfect-english-grammar.com/past-simple-exercise-4.html
- https://school-english.de/english/uebungen/unregelmaverb/regel1.htm
- https://www.grammarism.com/past-simple-regular-exercises/
- https://first-english.org/english_learning/english_tenses/simple_past_worksheets/simple_past_02_exercises_worksheet.pdf
answers: https://first-english.org/english_learning/english_tenses/simple_past_worksheets/simple_past_02_exercises_worksheet_answers.pdf
- https://first-english.org/english_learning/english_tenses/simple_past_worksheets/simple_past_07_double_consonants_worksheet.pdf
answers: https://first-english.org/english_learning/english_tenses/simple_past_worksheets/simple_past_07_double_consonants_worksheet_answers.pdf
- https://test-english.com/grammar-points/a2/past-simple-form-use/