| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] they could not [verb] | 118 |
|
| 2 | [verb] they could not [vb infin] | 118 |
|
| 3 | [verb] [pron] could not have | 55 |
|
| 4 | [verb] [pers pn] could not have | 54 |
|
| 5 | [verb] they [modal v] not have | 40 |
|
| 6 | [verb] they [vb mod] not have | 40 |
|
| 7 | [verb] they could [adv] have | 13 |
|
| 8 | [verb] they could not have | 9 |
|
| 9 | [verb] they could not have | 9 |
|
| 10 | [verb] they could not have | 9 |
|
