diff --git a/.tmux.conf b/.tmux.conf
index 4b74863..5c0497d 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -38,10 +38,10 @@
 set -g pane-active-border-fg green
 
 # --- switch a pane ---
-# Prefix + C-p : select a upper pane
-# Prefix + C-n : select a bottom pane
-# Prefix + C-b : select a left pane
-# Prefix + C-f : select a right pane
+# Prefix + C-p : select the pane above
+# Prefix + C-n : select the pane below
+# Prefix + C-b : select the pane left
+# Prefix + C-f : select the pane right
 # Up
 bind -r C-p select-pane -U
 # Down
@@ -56,10 +56,10 @@
 #
 # ex) Prefix + +++ means resize a pane of top +3.
 #
-# Prefix + + : resize a pane of top
-# Prefix + - : resize a pane of bottom
-# Prefix + < : resize a pane of left
-# Prefix + > : resize a pane of right
+# Prefix + + : extend the pane to the top
+# Prefix + - : extend the pane to the bottom
+# Prefix + < : extend the pane to the left
+# Prefix + > : extend the pane to the right
 # Up
 bind -r + resize-pane -U 1
 # Down