| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [verb] for half [art] hour | 7 |
|
| 2 | and [verb] for [det] [art] hour | 7 |
|
| 3 | and [verb] for [det] an hour | 7 |
|
| 4 | and [verb] for [det] a hour | 7 |
|
| 5 | and [verb] for [det] [art] hour | 7 |
|
