diff --git a/docs/howtostudykorean/unit-1/11-time.md b/docs/howtostudykorean/unit-1/11-time.md
index 73aa1c4..8b09baa 100644
--- a/docs/howtostudykorean/unit-1/11-time.md
+++ b/docs/howtostudykorean/unit-1/11-time.md
@@ -499,6 +499,96 @@ vocabulary:
en: Korean people are **usually** very nice
- ko: 그것은 **보통** 일이에요
en: That is **(just)** typical work
+
+sentence:
+ 동안:
+ - ko: 저는 10분 **동안** 걸었어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence1.mp3
+ en: I walked **for** 10 minutes
+ notes: |
+ Also remember that the spacing is different depending on if you write a numeral or a word. If writing the word, there should be a space between the number and the word. For example: 저는 십 분 동안 걸었어요
+ - ko: 저는 30분 **동안** 공부했어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence2.mp3
+ en: I studied for 30 minutes
+ - ko: 저는 이틀 **동안** 안 잤어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence3.mp3"
+ en: I didn’t sleep **for** two days
+
+ 시간:
+ - ko: 저는 세 **시간** 동안 잤어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-6.mp3
+ en: I slept for 3 **hours**
+ - ko: 저는 한 **시간** 동안 달렸어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence4.mp3
+ en: I ran for one **hour**
+ - ko: 저는 여덟 **시간** 동안 운전했어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence5.mp3
+ en: I drove for eight **hours**
+ - ko: 저는 어제 한 **시간** 동안 야구를 했어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence6.mp3
+ en: I played baseball for an **hour** yesterday
+ - ko: 저는 어제 두 **시간** 동안 TV를 봤어요\*
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-10.mp3
+ en: I watched TV for two **hours** yesterday
+ notes: |
+ Notice that 보다 is used when watching something. You can also use 보다 when you watch a performance or concert, or similar things.
+
+ 초:
+ - ko: 저는 2**초** 동안 달렸어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-11.mp3
+ en: I ran for 2 **seconds**
+ - ko: 저는 그 사람을 10**초** 동안 만났어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence7.mp3
+ en: I met that person for 10 **seconds**
+ - ko: 1분은 60**초**입니다
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence8.mp3
+ en: One minute is sixty **seconds**
+
+ 지난:
+ - ko: 저는 **지난** 주에 영화를 봤어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-14.mp3
+ en: I saw a movie **last** week
+ - ko: 저는 **지난** 주에 캐나다에 갔어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-15.mp3
+ en: I went to Canada **last** week.
+ - ko: 저는 **지난** 수업을 안 들었어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-16.mp3
+ en: I didn’t go to/attend the **previous** class
+
+ - ko: 저는 그것을 **지난 시간**에 배웠어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-17.mp3
+ en: I learned that (thing) **last time**
+
+ - ko: 저는 그것을 **지난 번**에 배웠어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence9.mp3
+ en: I learned that (thing) **last time**
+ - ko: 우리가 **지난 번**에 계획이 없었어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence10.mp3
+ en: We didn’t have plans **last time**
+ - ko: 우리는 **지난 번**에 돼지고기를 먹었어요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence11.mp3
+ en: We ate pork **last time**
+
+ - ko: 저는 **다음 주**에 영화를 볼 거예요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-21.mp3
+ en: I will see a movie **next week**
+ - ko: 저는 **다음 주**에 캐나다에 갈 거예요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2017/03/Lesson11-22.mp3
+ en: I will go to Canada **next week**
+
+ - ko: 우리는 **다음 번**에 학교에 갈 거예요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence12.mp3
+ en: We will go to school **next time**
+ - ko: 우리는 **다음 시간**에 학교에 갈 거예요
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence13.mp3
+ en: We will go to school **next time**
+
+ - ko: 나는 너를 **다음 번**에 방문할 거야
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence14.mp3
+ en: I will visit you **next time**
+ - ko: 나는 너를 **다음 시간**에 방문할 거야
+ audio: https://www.howtostudykorean.com/wp-content/uploads/2015/02/Lesson11sentence15.mp3
+ en: I will visit you **next time**
---
# Lesson 11: 동안, Seconds, Minutes, Hours, Days, Weeks, Months, Years
@@ -1099,6 +1189,8 @@ You can download all of these files in one package [here](https://www.howtostudy
## Introduction
+
+
In this lesson, you will build on what you learned in Lesson 10 by learning how to use a variety of different words of time in Korean. Using these words, you will be able to say “I did X **for** 2 months” or “I didn’t do Y **last** week.” You will also learn whether you should use the pure Korean or Sino-Korean numbers when using these different words of time.
The use of pure Korean or Sino-Korean numbers may seem random, but there is a reason for it. Anytime the ‘time’ word is of Chinese origin, the Sino-Korean numbers are used. For example “개월” (month) is counted using Sino-Korean numbers, because “개월” is of Chinese origin and has corresponding Chinese ([한자](https://www.howtostudykorean.com/hanja-unit-1-lessons-1-20/)) characters. “달” (also meaning month) is a Korean word, and thus, is counted using Korean numbers. A lot of Korean words are of Chinese origin and have corresponding Chinese ([한자](https://www.howtostudykorean.com/hanja-unit-1-lessons-1-20/)) characters. You will learn about those later.
@@ -1107,6 +1199,8 @@ This lesson is a little bit less organized than the previous lessons. It was dif
## “For” a certain amount of time (동안)
+
+
동안 is a very useful word that can be used to indicate how long an action occurs. It is typically placed after a duration of time, for example:
- 2분 = 2 minutes
@@ -1156,6 +1250,8 @@ I want to show you more and more examples of 동안, and I expect you might not
## Korean Hours (시간)
+
+
Talking about minutes is easy because you always simply use 분. For example:
- 3시 20분 means “3:20”, and
@@ -1195,6 +1291,8 @@ You will learn how to create those types of sentences when you learn about
## Korean Seconds (초)
+
+
When talking about seconds, you need to use the Sino-Korean numbers. When putting a number before “초,” it doesn’t matter if you use the word or the numeral. For example:
- 1초 = 1 second
@@ -1224,6 +1322,8 @@ In order to refer to a “previous” thing, the

+
+
지난 can be added immediately before **some** words of time (I discuss “some” a little bit later) to refer to a “previous” thing. This often translates to “last,” though. For example:
- 저는 지난 주에 영화를 봤어요 = I saw a movie last week