| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [adv] happen to | 17 |
|
| 2 | [Wh pn] just happen to | 10 |
|
| 3 | [Wh pn] [adv] happened to | 9 |
|
| 4 | [Wh pn] also happen to | 7 |
|
| 5 | [Wh pn] [adv] happens to | 6 |
|
