| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [adj] time | 221 |
|
| 2 | which at [adj] time | 70 |
|
| 3 | which [vb past] at [adj] | 68 |
|
| 4 | which [vb past] [adj] time | 17 |
|
