To learn how to use this information, click here.
| ~아/어 (Lessons 5 and 6) | 힘들어 |
| ~ㄴ/은 (Lesson 4) | 힘든 |
| ~ㄴ/는다 (Lesson 5) | – |
| ~ㅂ/습니다 (Lesson 6) | 힘듭니다 |
| ~ㄹ/을 (Lesson 9 and 26) | 힘들 |
| ~니 (Lesson 21) | 힘드니 |
| ~ㅁ/음 (Lesson 29) | 힘듦 |
| ~(으)려니 | 힘들려니 |
| ~(으)시 (Lesson 39) | 힘드시 |
| ~(으)면 (Lesson 43) | 힘들면 |
| ~(으)니 (Lesson 81) | 힘드니 |
For an organized table of every verb and adjective in Unit 1, click here.