| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] [adv] a | 556 |
|
| 2 | [prep] [adv] a hour | 222 |
|
| 3 | [adv] [prep] a hour | 217 |
|
| 4 | [adv] [adv] a hour | 135 |
|
