| Verb# | Group | High Intermediate Verbs 360 | |
| 5 | 1 | 漢字 | |
| 辞書 jisho-kei | 空く | aku | |
| -masu | 空きます | to be empty, be vacant | |
| -nai | 空かない | 1169verb | |
| -te | 空いて | ||
| -ta | 空いた | ||
| 意向形 ikou-kei | intentional form | ||
| 仮定形 katei-kei | hypothetical form | 空けば | |
| 可能形 kanou-kei | possibility form | ||
| 受身形 ukemi kei | passive voice | ||
| 使役形 shieki kei | causative form | ||