| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [verb] | 144373 |
|
| 2 | [vb infin] [vb pp] | 54003 |
|
| 3 | [verb] occurred | 1631 |
|
| 4 | [vb infin] occur | 303 |
|
