| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have happen to | 513 |
|
| 2 | [Wh det] be happen to | 300 |
|
| 3 | [Wh det] have be happen | 105 |
|
| 4 | have be happen to | 21 |
|
| 5 | [Wh det] have be to | 5 |
|
