| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [prep] they could [verb] | 65 |
|
| 2 | either [prep] they [modal v] [verb] | 15 |
|
| 3 | either [prep] they [vb mod] [verb] | 15 |
|
| 4 | either [prep] [pron] could [verb] | 11 |
|
| 5 | either [prep] they could [verb] | 7 |
|
