| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a few hours [adj] | 20 |
|
| 2 | a few hours [det] | 12 |
|
| 3 | a few hours each | 9 |
|
| 4 | a few hours each | 9 |
|
| 5 | a few hours [adj] | 6 |
|
