| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [not/n't] be [verb] by | 7 |
|
| 2 | they could [not/n't] be [verb] by | 7 |
|
| 3 | they could [not/n't] be [vb pp] by | 7 |
|
| 4 | they could not be [verb] by | 6 |
|
