| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] could be [verb] [prep] | 30 |
|
| 2 | [vb past] [pron] could [be] [verb] [prep] | 30 |
|
| 3 | [vb past] [pron] could be [verb] [prep] | 30 |
|
| 4 | [vb past] [pron] could [be] [verb] [prep] | 30 |
|
| 5 | [vb past] [pron] could [be] [vb pp] [prep] | 27 |
|
| 6 | [vb past] [pers pn] could [be] [verb] [prep] | 20 |
|
| 7 | [vb past] what could [be] [verb] [prep] | 7 |
|
| 8 | [vb past] [Wh det] could [be] [verb] [prep] | 7 |
|
| 9 | [vb past] what could [be] [verb] [prep] | 7 |
|
| 10 | [vb past] he could [be] [verb] [prep] | 6 |
|
| 11 | [vb past] he could [be] [verb] [prep] | 6 |
|
| 12 | showed [pron] could [be] [verb] [prep] | 5 |
|
| 13 | [vb past] it could [be] [verb] [prep] | 5 |
|
| 14 | [vb past] it could [be] [verb] [prep] | 5 |
|
| 15 | [vb past] she could [be] [verb] [prep] | 5 |
|
| 16 | [vb past] she could [be] [verb] [prep] | 5 |
|
