| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [adv] happened to be | 6 |
|
| 2 | [Wh det] [adv] happened to be | 6 |
|
| 3 | which [adv] happened to be | 6 |
|
| 4 | [Wh det] [adv] happened to be | 6 |
|
