| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] to | 2826 |
|
| 2 | [pron] happen to | 2077 |
|
| 3 | [Wh pn] happen to | 118 |
|
| 4 | who happen [prep] | 114 |
|
| 5 | who happen [prep] | 114 |
|
| 6 | who happen to | 111 |
|
| 7 | who happen to | 111 |
|
