| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [pron] [vb past] [prep] the time | 9 |
|
| 2 | which [pers pn] [vb past] [prep] the time | 9 |
|
| 3 | which [pron] [vb past] at the time | 9 |
|
