Day 1: https://ritsuko-english.com/erpday-1/
Day 2: https://ritsuko-english.com/erpday-2-bunkei/
Day 3: https://ritsuko-english.com/erpday-3-presenttense/
Day 4: https://ritsuko-english.com/erpday-4-past-and-presentperfect/
Day 5: https://ritsuko-english.com/erpday-5-futuretense/
Day 6: https://ritsuko-english.com/erpday-6-must/
Day 7: https://ritsuko-english.com/erpday-7-will/
Day 8: https://ritsuko-english.com/erpday-8-should/