| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] for [det] than [art] hour | 13 |
|
| 2 | [verb] for [det] than an hour | 13 |
|
| 3 | [verb] for [det] than a hour | 13 |
|
| 4 | [verb] for [det] than [art] hour | 13 |
|
| 5 | [verb] for more than [art] hour | 11 |
|
