| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] they could [not/n't] | 611 |
|
| 2 | so [pron] could [not/n't] | 163 |
|
| 3 | so [pers pn] could [not/n't] | 162 |
|
| 4 | so they [modal v] [not/n't] | 110 |
|
| 5 | so they could [adv] | 34 |
|
| 6 | so they could [not/n't] | 23 |
|
