| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [prep] a few hours | 14 |
|
| 2 | [prep] [noun] [prep] a few hours | 14 |
|
| 3 | [prep] [noun] for a few hours | 11 |
|
| 4 | [prep] [noun sg] [prep] a few hours | 10 |
|
