| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [adv] a [det] hours | 9 |
|
| 2 | [vb pp] [prep] [adv] a [det] hour | 9 |
|
| 3 | [vb pp] [prep] [adv] a few hour | 9 |
|
| 4 | [vb pp] [prep] [adv] a [det] hour | 9 |
|
| 5 | [vb pp] [prep] only a [det] hour | 7 |
|
| 6 | [vb pp] for [adv] a [det] hour | 6 |
|
| 7 | [vb pp] for [adv] a [det] hour | 6 |
|
