| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [art] | 8667 |
|
| 2 | [vb past] [art] time | 659 |
|
| 3 | which [art] time | 9 |
|
| 4 | which [vb past] time | 6 |
|
