| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [vb past] they could [adv] [vb infin] | 25 |
|
| 2 | [noun pl] [vb past] they could [adv] [vb infin] | 25 |
|
| 3 | [noun pl] [vb past] they could [not/n't] [vb infin] | 22 |
|
| 4 | [noun pl] [vb past] they could not [vb infin] | 22 |
|
| 5 | [noun pl] [vb past] they could not [vb infin] | 15 |
|
| 6 | [noun pl] said they could [adv] [vb infin] | 10 |
|
| 7 | [noun pl] [vb past] they could n't [vb infin] | 7 |
|
