| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] [noun] [pers pn] | 420 |
|
| 2 | [prep] [art] [det] hour [pers pn] | 18 |
|
| 3 | [prep] a [adj] hour [pers pn] | 17 |
|
| 4 | [prep] a [det] hour [pron] | 15 |
|
