| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [conj] [pron] could | 547 |
|
| 2 | [to-vb] [subord] [pron] could | 290 |
|
| 3 | [verb] when [pron] could | 47 |
|
| 4 | [to-vb] when [pron] [vb mod] | 23 |
|
| 5 | [to-vb] when [pron] [modal v] | 23 |
|
| 6 | [to-vb] when [pron] could | 9 |
|
| 7 | [to-vb] when [pron] could | 9 |
|
