〜本 (ほん) is the counter for long, thin objects such as bottles, pencils, and umbrellas. The pronunciation changes depending on the number. Key points: • 1本 = いっぽん • 2本 = にほん • 3本 = さんぼん • 4本 = よんほん • 5本 = ごほん • 6本 = ろっぽん • 7本 = ななほん • 8本 = はっぽん • 9本 = きゅうほん • 10本 = じゅっぽん Example: “ペンを三本買いました” means “I bought three pens.” Remember the sound changes (hon → bon/pon) for certain numbers. Practice by counting pens, bottles, or chopsticks with 本.