diff --git a/🔰 Grammar/Opposition.md b/🔰 Grammar/Opposition.md
index 8e9d3c1..c77d81d 100644
--- a/🔰 Grammar/Opposition.md	
+++ b/🔰 Grammar/Opposition.md	
@@ -91,6 +91,47 @@ https://bunpro.jp/grammar_points/%E3%82%8F%E3%82%8A%E3%81%AB
 lots of things are similar
 
 
+## ことは～が
+
+<div class="usage">
+<div class="">
+	<p><span class="box">V</span></p>
+</div>
+	<p class="r">+ ことは + </p>
+<div class="">
+	<p><span class="box">V</span></p>
+</div>
+	<p class="r">+ が</p>
+</div>
+<div class="usage">
+<div class="">
+	<p><span class="box">い-Adj</span></p>
+</div>
+	<p class="r">+ ことは + </p>
+<div class="">
+	<p><span class="box">い-Adj</span></p>
+</div>
+	<p class="r">+ が</p>
+</div>
+<div class="usage">
+<div class="">
+	<p><span class="box">な-Adj + な</span></p>
+</div>
+	<p class="r">+ ことは + </p>
+<div class="">
+	<p><span class="box">な-Adj</span></p>
+</div>
+	<p class="r">+ が</p>
+</div>
+⚠ It must be the same verb and adjective at both end!
+
+Means "although".
+
+> [!info] Example
+> {勉強|べんきょう}する==ことは==する==が==、まだ{下手|へた}です。
+> Although I study everyday, I'm still bad at it.
+
+
 
 # TODO