| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at the [adj] time | 80 |
|
| 2 | which at the [adj] time | 21 |
|
| 3 | which [vb past] at the [adj] | 19 |
|
| 4 | which [vb past] at the time | 9 |
|
| 5 | which [vb past] at [adj] time | 5 |
|
