| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] to | 4804 |
|
| 2 | [pron] happen to | 2077 |
|
| 3 | [Wh det] happen to | 1292 |
|
| 4 | which happen [prep] | 129 |
|
| 5 | which happen [prep] | 129 |
|
| 6 | which happen to | 64 |
|
| 7 | which happen to | 64 |
|
