| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [verb] [prep] [art] | 394 |
|
| 2 | [modal v] [vb infin] [verb] for [art] | 393 |
|
| 3 | could [vb infin] [verb] for [art] | 29 |
|
| 4 | could [verb] [verb] for [art] | 29 |
|
