| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [vb -s] occurred | 10 |
|
| 2 | [prep] what [vb -s] occurred | 10 |
|
| 3 | what [vb -s] occurred [prep] | 8 |
|
| 4 | what [vb -s] occurred [prep] | 8 |
|
| 5 | what [vb -s] occurred in | 5 |
|
| 6 | what [vb -s] occurred in | 5 |
|
