| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [num ord] time | 151 |
|
| 2 | [prep] [pers pn] [num ord] time | 46 |
|
| 3 | [pers pn] a [num ord] time | 38 |
|
| 4 | [prep] [pers pn] a [num ord] | 17 |
|
