"vault backup: 2025-12-04 11:28:01 from Flow"

10-Input/Classes/Chinese Class_2025-11-24.md

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-
-
 # Homework
 - Make 4 sentences using **bùdàn...érqiě...** for weather related things.
 	- Jīntiān bùdàn hen Rè érqiě Qíngtiān

10-Input/Classes/Japanese Class_2025-12-04.md

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-# Random Words
-- 軍隊 -> ぐんたい -> Military
-- おく -> Billion
-- 年を取る -> としをとる -> To become old
-- 着く -> つく -> to arrive
--  官憲します -> かんけんします -> To do an expedition
-- 切る -> きる -> to turn off/cut off
-- 消す -> けす -> to turn off/make disappear
-- 自動チェックイン -> じどうチェックイン  -> Self Check-in
-
-# Main Point
-
-## Confirmation Conditions (ら)
-- When your waiting for a certain situation to occur, you can stick なったら after it to show that its something that is expected to occur, saying "When the situation becomes this...."
-
-### Examples
-- 彼女は二十歳**なったら**、会社に入社します。
-	- **After** the girl turns 20, then she can enter the work force
-- 年を取ったら、田舎に住みたい
-	- When I grow old, I want to live on the country side
-		- Note, there's no なる here, you can use ら after any verb.
-- 駅に着いたら, 電話してください
-	- When you get to the station, please give me a call
-- 今日は家に帰ったら、何をしますか。
-	- When you return home today, what will you do？
-	- Asking questions
-
-## Need Not To (なくてもいいです)
-- If you want to say you don't need someone to do something, you can add "なくてもいいです" after the verb.
-	- Using just Verb Stem -てもいいです is like asking something to do something very kindly. Like saying "its ok if you turn on the AC". 
-### Examples
-- ホテルでかばんを持たなくてもいいです。
-	- At the hotel, its ok if you don't hold my bags//don't need to hold my bags
-- 日曜日は早く起きなくてもいいです
-	- On Sundays, its ok to not wake up early.
-- 日曜日は仕事に行かなくてもいいです
-	- I don't need to go to work on Sundays
-- AIがあったら、仕事をしなくてもいいです
-	- If there's AI, we don't need to work
-- 自動チェックインをしたら、カウンターに行かなくてもいいです.
-	- If you use self check in, you don't need to go to the counter
-- 

10-Input/Classes/Japanese_Homework.md

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+# Synopsis from 2025-12-04 Class
+
+This week's lesson covered two main grammar points in detail:
+
+1.  **The Conditional `(た)ら`:**
+    *   **What it is:** A highly common and versatile way to say "if" or "when." It's used to connect two clauses, where the first clause is a condition that must be met for the second clause to happen.
+    *   **How to form it:** You take the plain past tense of a verb (the `た-form`) and simply add `ら`. For example, `着く` (tsuku, to arrive) becomes `着いた` (tsuita), and then you add `ら` to get `着いたら` (tsuitara, "when/if you arrive").
+    -   **For adjectives and nouns:**
+        -   い-Adjectives: Change the final `い` to `かったら`. (e.g., `寒い` -> `寒かったら` - if it's cold)
+        -   な-Adjectives/Nouns: Add `だったら`. (e.g., `暇` -> `暇だったら` - if you're free)
+    *   **When to use it:** It's great for both guaranteed future events ("**When** I turn 20, I will...") and hypotheticals ("**If** I won the lottery, I would..."). It strongly implies that the first action *must* happen before the second can begin.
+
+2.  **Expressing "No Need To" with `なくてもいいです`:**
+    *   **What it is:** This pattern is used to tell someone that they are not obligated to do something. It's a polite way of saying "You don't have to..." or "It's okay if you don't..."
+    *   **How to form it:** Take the plain negative `ない` form of a verb. For example, `持つ` (motsu, to hold) becomes `持たない` (motanai). Then, you drop the final `い` and add `くてもいいです`. So, `持たない` becomes `持たなくてもいいです` (motanakutemo ii desu, "you don't have to hold it").
+    *   **When to use it:** Use this to grant permission *not* to do something. It's the gentle opposite of giving a command. For instance, at a friend's house, you might be told `靴を脱がなくてもいいです` (kutsu o nuganakutemo ii desu), meaning "It's okay if you don't take off your shoes."