diff --git a/10-Input/Classes/Chinese Class_2026-03-12.md b/10-Input/Classes/Chinese Class_2026-03-12.md
index f49edff..774bcbd 100644
--- a/10-Input/Classes/Chinese Class_2026-03-12.md	
+++ b/10-Input/Classes/Chinese Class_2026-03-12.md	
@@ -60,9 +60,13 @@ Because other people may not completely (deeply) understand our feelings
 		jiěshì -> to explain
 
 ## 不一定 // bù yīdìng
+不一定 -> bù yīdìng
 
+yīdìng means "certain" or "sure", therefore bù yīdìng means "not sure", but its used in more ways then that. You can stick it as answers to anything your not sure about, or may not happen, or stuff like that.
+
+A: 这个周末你工作吗？
 
 
 # Homework
-- 
- |
\ No newline at end of file
+- 3 sentences using "dòu"
+- 3 sentences using the supplmentary sentence
\ No newline at end of file