| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] could | 2700 |
|
| 2 | [vb past] [pers pn] could | 2608 |
|
| 3 | [vb past] she [vb mod] | 1818 |
|
| 4 | [vb past] she [modal v] | 1818 |
|
| 5 | [verb] she could | 797 |
|
| 6 | [vb past] she could | 506 |
|
| 7 | [vb past] she could | 506 |
|
