diff --git a/10-Input/Classes/Japanese Class_2026-01-21.md b/10-Input/Classes/Japanese Class_2026-01-21.md
index 4fc5efe..82cdcd0 100644
--- a/10-Input/Classes/Japanese Class_2026-01-21.md	
+++ b/10-Input/Classes/Japanese Class_2026-01-21.md	
@@ -36,7 +36,12 @@ The verb is 歌う, which is a verb. We stick の after it, the dictionary form,
 	- Lying is bad
 - 私はAさんが中国語を勉強しているのを知っています
 	- I know that A-san is studying Chinese
-	- Notice: you can 
+	- Notice: you can use の for other things to, not just before は. It turns the entire verb phrase into a noun.
+- 私はAさんがタバコを吸うわないのを知っています
+	- I know that Aーさん doesn't smoke.
+	- Notice: You can use it for negative sentences too.
+- 彼はBさんたちが来月に結婚するのを知っています。
+	- He knows that B and her partner are getting married next month.
 - 
 
 # Supplementary Notes