diff --git a/_notes/Korean grammar.md b/_notes/Korean grammar.md
index 64205f2..8319860 100644
--- a/_notes/Korean grammar.md	
+++ b/_notes/Korean grammar.md	
@@ -64,6 +64,7 @@ title: Korean grammar
 	<li><a href="#any" class="internal-link">Any</a></li>
 	<li><a href="#try" class="internal-link">Try</a></li>
 	<li><a href="#spacing" class="internal-link">Spacing in Korean</a></li>
+	<li><a href="#most" class="internal-link">The most</a></li>
 </ul>
 </details>
 
@@ -1072,7 +1073,23 @@ When writing in Korean, in order to avoid unclear and confusing sentences, spaci
 	3. 청소(를) 하다 = 청소 하다 = 청소하다
 
 
+### The most {#most}
+`제일, 가장`
 
+제일 and 가장 are almost the same thing and can be used interchangeably. 
+
+- 제일 = Sino-Korean word 
+- 가장 = native Korean word
+
+examples:
+
+- to be pretty = 예쁘다
+- the most beautiful = 제일 예쁘다
+- the prettiest girl = 제일 예쁜 여자
+
+- to be good = 좋다
+- (x) is the best = 제일 좋아요
+- the best thing = 제일 좋은 것
 
 
 [^10]: in Korean - a hardworking person
diff --git a/_notes/Korean phrases.md b/_notes/Korean phrases.md
index 1531e62..0f865a7 100644
--- a/_notes/Korean phrases.md	
+++ b/_notes/Korean phrases.md	
@@ -324,6 +324,8 @@ Usually they go right before the verb, but their position is very flexible. As l
 
 Used to make speech faster. If used in text - very informal
 
+#### -은/-는
+
 - 저는 -> 전[^15]
 - 나는 -> 난
 - 우리는 -> 우린
@@ -331,6 +333,12 @@ Used to make speech faster. If used in text - very informal
 - 서울에는 -> 서울엔
 - 어제는 -> 어젠
 
+#### 것이
+
+- 이것이 -> 이게
+- 저것이 -> 저게
+- 그것ㅣ -> 그게
+
 ### Word builder
 
 #### 학