| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] what [pron] could | 58 |
|
| 2 | [pers pn] [vb past] what [pron] could | 57 |
|
| 3 | they [vb past] [pron] [pron] could | 22 |
|
| 4 | they [vb past] what [pron] [modal v] | 14 |
|
| 5 | they [vb past] what [pron] could | 7 |
|
| 6 | they [verb] what [pron] could | 7 |
|
