| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [prep] an hour | 18 |
|
| 2 | [noun prp] [prep] a hour | 18 |
|
| 3 | [noun prp] [prep] a hour | 18 |
|
| 4 | [noun prp] for a hour | 10 |
|
| 5 | [noun prp] for a hour | 10 |
|
| 6 | [noun prp] in a hour | 5 |
|
| 7 | [noun prp] in a hour | 5 |
|
