| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] still [vb infin] occurred | 11 |
|
| 2 | [modal v] still have occurred | 11 |
|
| 3 | would still [vb infin] occurred | 9 |
|
| 4 | would still [vb infin] occurred | 9 |
|
