| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] that [pron] could | 902 |
|
| 2 | [vb past] that [pers pn] could | 819 |
|
| 3 | [vb past] that they [modal v] | 653 |
|
| 4 | [verb] that they could | 343 |
|
| 5 | [vb past] [conj] they could | 189 |
|
| 6 | [vb past] that they could | 147 |
|
| 7 | [vb past] [that] they could | 147 |
|
| 8 | [vb past] that they could | 147 |
|
