diff --git a/10-Input/Classes/Japanese Class_2026-04-01.md b/10-Input/Classes/Japanese Class_2026-04-01.md
index 368b907..bc4433b 100644
--- a/10-Input/Classes/Japanese Class_2026-04-01.md	
+++ b/10-Input/Classes/Japanese Class_2026-04-01.md	
@@ -15,6 +15,7 @@
 - 間違う -> まちがう -> To make a mistake
 - 文章 -> ぶんしょ -> Documents
 - お見合い -> おみあい -> Arranged Marriage
+- 招待する -> しょうたいする -> to invite
 
 # Main Point
 ## 疑問詞 -> ぎもんし -> Interrogative Words
@@ -58,6 +59,9 @@ Can add どうか after the か to mean "or not". Kind of same meaning, just add
 	- Please tell me when we will take off.
 - 私は文書が間違っているかどうか、チェックします
 	- I will check whether the document is incorrect.
+- 招待したの人が来るかどうか、知りません
+	- I don't know whether the people I invited will come or not.
+- 
 
 # Supplementary Notes
 	- For 知っている, we can only use ています in the affirmative, not in the negative.