| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not be [verb] [prep] | 805 |
|
| 2 | could be [verb] [prep] [be] | 170 |
|
| 3 | not be [verb] [prep] [be] | 124 |
|
| 4 | could not [verb] [prep] [be] | 46 |
|
| 5 | could not be [verb] [be] | 6 |
|
