| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [vb past] [pers pn] could [adv] [verb] | 42 |
|
| 2 | [coord] [vb past] [pers pn] [modal v] not [verb] | 40 |
|
| 3 | [coord] [vb past] [pers pn] could [not/n't] [verb] | 34 |
|
| 4 | [coord] [vb past] [pers pn] could not [verb] | 34 |
|
| 5 | [conj] [vb past] [pers pn] could not [verb] | 17 |
|
| 6 | [coord] [verb] [pers pn] could not [verb] | 16 |
|
| 7 | [coord] [vb past] [pron] could not [verb] | 15 |
|
