| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in a [det] [noun] | 1082 |
|
| 2 | [prep] a [det] hour | 334 |
|
| 3 | [prep] a [det] hour | 334 |
|
| 4 | in a [adj] hour | 60 |
|
| 5 | in [art] [det] hour | 48 |
|
| 6 | in a [det] hour | 37 |
|
