| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [pron] [conj] [pron] | 32 |
|
| 2 | [modal v] [adv] [verb] [pron] [conj] they | 29 |
|
| 3 | could [adv] [verb] [pron] [conj] they | 24 |
|
