| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [modal v] [verb] | 371248 |
|
| 2 | [vb past] [pron] [verb] | 59078 |
|
| 3 | [vb past] [pron] [modal v] | 14323 |
|
| 4 | [vb past] [modal v] [verb] | 496 |
|
