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