| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] for [adj] hours | 45 |
|
| 2 | [vb base] for [num] hours | 40 |
|
| 3 | work for [adj] hours | 6 |
|
| 4 | leave for [adj] hours | 5 |
|
