| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] happen to | 639 |
|
| 2 | which [verb] [verb] to | 555 |
|
| 3 | which [verb] happen [prep] | 20 |
|
| 4 | which [verb] happen [prep] | 20 |
|
| 5 | which [verb] happen to | 7 |
|
