| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [art] | 12287 |
|
| 2 | could [vb infin] [det] | 3310 |
|
| 3 | [vb infin] [det] [art] | 3089 |
|
| 4 | could [det] [art] | 32 |
|
