| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] at [det] [noun sg] | 14 |
|
| 2 | which [vb past] at this [noun sg] | 6 |
|
| 3 | which [vb past] at that [noun sg] | 6 |
|
| 4 | which [vb past] at [det] time | 5 |
|
