| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] hour [unc] | 50 |
|
| 2 | a [det] hour [unc] | 38 |
|
| 3 | a half [noun] [unc] | 24 |
|
| 4 | [art] half hour [unc] | 7 |
|
| 5 | a half hour [unc] | 6 |
|
