| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] the | 15855 |
|
| 2 | [pron] introduce the | 182 |
|
| 3 | which introduce [art] | 47 |
|
| 4 | which introduce the | 32 |
|
| 5 | [Wh det] introduce the | 32 |
|
