diff --git a/10-Input/Classes/Japanese Notes.md b/10-Input/Classes/Japanese Notes.md
index 2af4159..26aded7 100644
--- a/10-Input/Classes/Japanese Notes.md	
+++ b/10-Input/Classes/Japanese Notes.md	
@@ -53,11 +53,18 @@ I hope I get promoted
 I hope my public talk gets better
 
 ## When -> とき
-To say when you did an activity, usually as a reference in time, you add -とき at the end of the verb for that sentence.
+To say when you did an activity, usually as a reference in time, you add -とき at the end of the verb for that sentence. If it happend in the past, it has to be the past tense verb its attached to. If it happened just now, present tense is fine. It has to be regular form, not polite.
+
+Note on past tense vs present tense on the first sentence: If something happens while your actively doing the activity, like walking to work and something happens, you'd use the present tense verb. If something happens after you've arrived, then you'd use past tense.
 
 ### Examples
 パリに行った時にこのかばんを買いました
-That Time I was in paris, I bought this bag
+That Time I was in paris, I bought this bag.
+
+会社行く時に友達を会いました.
+I met my friend on the way to work
+
+
 
 ## Potential Verbs
 Remind me to study later