| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] could | 1449 |
|
| 2 | [pron] [adv] could | 1438 |
|
| 3 | [pron] then [vb mod] | 85 |
|
| 4 | [pron] then [modal v] | 85 |
|
| 5 | [pron] then could | 6 |
|
| 6 | [pron] then could | 6 |
|
