| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pers pn] at [art] time | 165 |
|
| 2 | [prep] [v-ing] [pers pn] at [art] | 65 |
|
| 3 | [prep] [v-ing] at [art] time | 22 |
|
| 4 | [v-ing] [pers pn] at [art] time | 12 |
|
