| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [adv] a few hours | 11 |
|
| 2 | for [adv] a few hour | 11 |
|
| 3 | for [adv] a few hour | 11 |
|
| 4 | for [adv] a few hour | 11 |
|
| 5 | for only a few hour | 7 |
|
