| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have occurred in | 50 |
|
| 2 | which have occur in | 42 |
|
| 3 | [Wh det] have occur in | 20 |
|
| 4 | [Wh det] had occur in | 16 |
|
| 5 | [Wh det] has occur in | 14 |
|
| 6 | what have occur in | 7 |
|
