| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [art] hour for | 17 |
|
| 2 | [adj] a hour for | 17 |
|
| 3 | [adj] [art] hour for | 17 |
|
| 4 | [adj] an hour for | 17 |
|
| 5 | [det] [art] hour for | 15 |
|
| 6 | half [art] hour for | 14 |
|
| 7 | half [art] hour for | 14 |
|
