| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a few hours [unc] | 32 |
|
| 2 | few hours [unc] [noun] | 29 |
|
| 3 | a few [unc] [noun] | 19 |
|
| 4 | a few hours [noun] | 14 |
|
