Table of Contents

1. Introduction
2. ‘-도록 하다’ Analysis
3. ‘-아야/어야’ Analysis
4. Usage Comparison
5. Practice Exercises
6. Common Mistakes
7. Summary

1. Introduction

The Korean grammar patterns ‘-도록 하다’ and ‘-아야/어야’ are essential structures for expressing obligation, purpose, and necessity. This comprehensive guide will help you understand and master these important grammatical patterns.

2. ‘-도록 하다’ (-do-rok ha-da)

Basic Structure

• Verb stem + -도록 하다
• Adjective stem + -도록 하다

Core Meanings

1. To make something happen
2. To ensure a certain result
3. To give instructions or directions

Detailed Usage

1. Expressing Purpose

• 늦지 않도록 하세요. [nŭt-ji an-do-rok ha-se-yo]
• Make sure not to be late.
• 모두가 이해할 수 있도록 하겠습니다. [mo-du-ga i-hae-hal su it-do-rok ha-get-sŭm-ni-da]
• I will make sure everyone can understand.

2. Giving Instructions

• 문을 닫도록 하세요. [mun-ŭl dat-do-rok ha-se-yo]
• Please close the door.
• 숙제를 완성하도록 하세요. [suk-je-rŭl wan-sŏng-ha-do-rok ha-se-yo]
• Make sure to complete your homework.

3. Making Arrangements

• 회의실을 준비하도록 하겠습니다. [hoe-ui-sil-ŭl jun-bi-ha-do-rok ha-get-sŭm-ni-da]
• I will arrange to prepare the meeting room.

Formal vs. Informal Usage

1. Formal Settings

• 다음 주까지 보고서를 제출하도록 하겠습니다. [da-ŭm ju-kka-ji bo-go-sŏ-rŭl je-chul-ha-do-rok ha-get-sŭm-ni-da]
• I will ensure to submit the report by next week.

2. Informal Settings

• 일찍 자도록 할게. [il-jjik ja-do-rok hal-ge]
• I’ll make sure to go to bed early.

3. ‘-아야/어야’ (-a-ya/ŏ-ya)

Basic Structure

• Verb/Adjective stem + -아야/어야
• After ‘ㅏ, ㅗ’ → -아야
• After other vowels → -어야
• After 하다 verbs → -해야

Core Meanings

1. Must do something
2. Have to do something
3. Should do something

Detailed Usage

1. Expressing Necessity

• 공부해야 해요. [gong-bu-hae-ya hae-yo]
• (I) have to study.
• 밥을 먹어야 해요. [bab-ŭl mŏg-ŏ-ya hae-yo]
• (You) must eat.

2. Expressing Conditions

• 돈을 벌어야 집을 살 수 있어요. [don-ŭl bŏr-ŏ-ya jib-ŭl sal su i-ssŏ-yo]
• (I) must earn money to be able to buy a house.

3. Common Combinations

• -아야/어야 되다 [-a-ya/ŏ-ya doe-da]
• -아야/어야 하다 [-a-ya/ŏ-ya ha-da]

Time References

1. Present Necessity

• 지금 가야 해요. [ji-gŭm ga-ya hae-yo]
• (I) have to go now.

2. Future Necessity

• 내일까지 끝내야 돼요. [nae-il-kka-ji kkŭt-nae-ya dwae-yo]
• (It) must be finished by tomorrow.

4. Usage Comparison

Situation-based Examples

1. Work Environment

• ‘-도록 하다’:
• 보고서를 검토하도록 하겠습니다. [bo-go-sŏ-rŭl gŏm-to-ha-do-rok ha-get-sŭm-ni-da]
• I will make sure to review the report.
• ‘-아야/어야’:
• 보고서를 검토해야 합니다. [bo-go-sŏ-rŭl gŏm-to-hae-ya ham-ni-da]
• We must review the report.

2. Daily Life

• ‘-도록 하다’:
• 건강하도록 운동하세요. [gŏn-gang-ha-do-rok un-dong-ha-se-yo]
• Exercise to stay healthy.
• ‘-아야/어야’:
• 건강하려면 운동해야 해요. [gŏn-gang-ha-ryŏ-myŏn un-dong-hae-ya hae-yo]
• You must exercise to be healthy.

5. Practice Exercises

Exercise 1: ‘-도록 하다’

Complete the sentences:

1. 시간에 맞춰 _ 하세요. (오다)
2. 깨끗이 _ 하겠습니다. (청소하다)

Exercise 2: ‘-아야/어야’

Transform these sentences:

1. 학교에 가다 → _
2. 숙제를 하다 → _

6. Common Mistakes

‘-도록 하다’ Mistakes

1. Incorrect Particle Usage

• Incorrect: 가도록을 하다
• Correct: 가도록 하다

1. Redundant Expression

• Incorrect: 하도록 하도록 하다
• Correct: 하도록 하다

‘-아야/어야’ Mistakes

1. Wrong Vowel Harmony

• Incorrect: 먹아야 해요
• Correct: 먹어야 해요

1. Incorrect Conjugation

• Incorrect: 하야 해요
• Correct: 해야 해요

7. Additional Notes

Business Context

‘-도록 하다’

• 기한 내에 완료하도록 하겠습니다. [gi-han nae-e wan-ryo-ha-do-rok ha-get-sŭm-ni-da]
• I will ensure to complete it within the deadline.

‘-아야/어야’

• 회의에 참석해야 합니다. [hoe-ui-e cham-sŏk-hae-ya ham-ni-da]
• You must attend the meeting.

Academic Context

‘-도록 하다’

• 과제를 제출하도록 합시다. [gwa-je-rŭl je-chul-ha-do-rok ham-si-da]
• Let’s make sure to submit the assignment.

‘-아야/어야’

• 시험공부를 해야 해요. [si-hŏm-gong-bu-rŭl hae-ya hae-yo]
• You must study for the exam.

Summary

Key Points for ‘-도록 하다’:

1. Used for making arrangements
2. Expressing purpose
3. Giving instructions
4. More formal and polite

Key Points for ‘-아야/어야’:

1. Expressing necessity
2. Showing obligation
3. Indicating conditions
4. Can be both formal and informal

Practice Tips:

1. Start with simple daily activities
2. Practice both patterns in different contexts
3. Pay attention to the formality level
4. Create your own sentences using both patterns