| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] [det] [pron] could | 24 |
|
| 2 | [pers pn] [vb past] [det] [pron] could | 23 |
|
| 3 | i [vb past] [det] [pron] [modal v] | 14 |
|
| 4 | i [verb] [det] [pron] could | 10 |
|
| 5 | i [vb past] [adj] [pron] could | 10 |
|
| 6 | i [vb past] [det] [pron] could | 7 |
|
