| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [vb past] [det] [pers pn] could | 6 |
|
| 2 | and [vb past] [det] [pron] could | 6 |
|
| 3 | [coord] [vb past] all [pron] could | 6 |
|
| 4 | [coord] [vb past] [det] [pron] could | 6 |
|
| 5 | [coord] did [det] [pron] could | 5 |
|
