| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [art] | 100245 |
|
| 2 | [vb mod] [vb infin] [art] | 100245 |
|
| 3 | could [verb] [art] | 12345 |
|
| 4 | could [vb infin] [art] | 12287 |
|
