| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [vb infin] [pron] [be] the | 6 |
|
| 2 | could [not/n't] [verb] [pron] [be] the | 6 |
|
| 3 | could [not/n't] [verb] [pron] be the | 6 |
|
| 4 | could [not/n't] [verb] [pron] [was/were] the | 5 |
|
| 5 | could [not/n't] [verb] [Wh det] [be] the | 5 |
|
| 6 | could [not/n't] [verb] [pron] was the | 5 |
|
