| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] [adv] | 5452 |
|
| 2 | which [vb mod] [adv] | 3741 |
|
| 3 | [pron] [vb mod] then | 2132 |
|
| 4 | which [vb mod] then | 301 |
|
| 5 | which [modal v] then | 301 |
|
