| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [prep] a few hour | 8 |
|
| 2 | [noun prp] [prep] a [det] hour | 8 |
|
| 3 | [noun prp] [prep] a [det] hour | 8 |
|
| 4 | [noun prp] [prep] a [det] hours | 8 |
|
