| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] [adv] a [noun] | 141 |
|
| 2 | [verb] [prep] [adv] a hour | 53 |
|
| 3 | [vb past] [prep] [adv] [art] hour | 14 |
|
