| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] [pron] could [vb infin] | 370 |
|
| 2 | [vb pp] [pron] [pron] could [vb infin] | 33 |
|
| 3 | [vb pp] [verb] [pron] [pron] could | 8 |
|
| 4 | [vb pp] [verb] [pron] could [vb infin] | 8 |
|
