| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that be [Wh det] happened to | 20 |
|
| 2 | that be what happened to | 20 |
|
| 3 | that be [pron] happened to | 20 |
|
| 4 | that be what happened to | 20 |
|
| 5 | that 's [pron] happened to | 18 |
|
