| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [Wh det] [be] | 304 |
|
| 2 | [Wh det] happened [be] | 136 |
|
| 3 | that [Wh det] happened | 28 |
|
| 4 | that happened [be] | 17 |
|
