| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [prep] [art] | 3253 |
|
| 2 | [vb mod] [vb infin] from [art] | 1845 |
|
| 3 | [modal v] [vb infin] from [art] | 1845 |
|
| 4 | could [verb] from [art] | 208 |
|
| 5 | could [vb infin] from [art] | 207 |
|
