| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] at [art] | 396 |
|
| 2 | which [vb past] at [art] | 145 |
|
| 3 | which they [vb past] [art] | 129 |
|
| 4 | which they [vb past] at | 23 |
|
