| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] hours and | 10 |
|
| 2 | [prep] a few hours and | 10 |
|
| 3 | [prep] a [adj] hours and | 10 |
|
| 4 | [prep] a few hours and | 10 |
|
| 5 | [prep] a [det] hours and | 10 |
|
| 6 | for a [adj] hours and | 7 |
|
| 7 | for a [adj] hours and | 7 |
|
