| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb -s] occurred [prep] [art] [num ord] | 5 |
|
| 2 | [Wh det] [vb -s] occurred [prep] [art] [num ord] | 5 |
|
| 3 | [vb -s] occurred [prep] [art] [num ord] [adj] | 6 |
|
