| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] a [det] | 647 |
|
| 2 | [prep] a [det] hours | 324 |
|
| 3 | [adv] a [det] hours | 140 |
|
| 4 | [prep] [adv] [det] hours | 36 |
|
