| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could be [verb] [prep] | 1637 |
|
| 2 | could not be [verb] [prep] | 805 |
|
| 3 | [pron] could not [verb] [prep] | 514 |
|
| 4 | [pron] could not be [verb] | 473 |
|
| 5 | [pron] not be [verb] [prep] | 21 |
|
| 6 | [pron] could not be [prep] | 10 |
|
