| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [pron] [modal v] | 7098 |
|
| 2 | which [pron] [vb mod] | 7098 |
|
| 3 | [pron] [pron] could | 3930 |
|
| 4 | which [pron] could | 1089 |
|
