| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a few hour | 324 |
|
| 2 | [prep] a hour [unc] | 68 |
|
| 3 | a few hour [unc] | 32 |
|
| 4 | [prep] a few [unc] | 13 |
|
