| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] therefore be possible | 9 |
|
| 2 | [modal v] therefore be possible | 9 |
|
| 3 | therefore be possible [to-vb] | 6 |
|
| 4 | therefore be possible [verb] | 6 |
|
