| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [verb] [pron] [pron] could | 5 |
|
| 2 | be [vb pp] [verb] [pron] [pron] could | 5 |
|
| 3 | [vb pp] [verb] [pron] [pron] could [verb] | 6 |
|
| 4 | [vb pp] [verb] [pron] [pron] could [vb infin] | 6 |
|
