| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] been [verb] | 7068 |
|
| 2 | [modal v] [vb infin] [verb] [verb] | 3186 |
|
| 3 | [vb infin] been [verb] [verb] | 613 |
|
