A: For grammar , yes. Duolingo is a game; a structural PDF is a textbook. Use Duolingo for vocabulary exposure and the PDF for explicit rules. They work best together.
| Month | Focus | Action from PDF | | :--- | :--- | :--- | | | Hiragana & Basics | Write each character 10 times. Learn "A is B" and "This/That." PDF pages 1-40. | | Month 2 | Katakana & Verbs | Master Katakana for loanwords. Learn Masu-form conjugation. PDF pages 41-90. | | Month 3 | Particles & Te-form | Drill が, に, で, へ. Master Te-form (the hardest basic conjugation). PDF pages 91-150. | manabou nihongo pdf