| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [pron] happened [prep] be | 8 |
|
| 2 | [noun pl] [Wh pn] happened [prep] be | 5 |
|
| 3 | [noun pl] who happened [prep] be | 5 |
|
| 4 | [noun pl] who happened [prep] be | 5 |
|
| 5 | [noun pl] happened [prep] be [verb] | 6 |
|
