| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [pron] [pron] | 1594 |
|
| 2 | [pron] time [pron] | 512 |
|
| 3 | at time [pron] | 265 |
|
| 4 | at [pron] time | 127 |
|
