| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [art] [adj] | 3582 |
|
| 2 | [modal v] [vb infin] [art] same | 1091 |
|
| 3 | could [vb infin] [art] [det] | 270 |
|
| 4 | could [verb] [art] same | 126 |
|
| 5 | could [vb infin] [art] same | 126 |
|
