| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [be] [vb pp] | 1895 |
|
| 2 | could [be] [vb pp] [adj] | 239 |
|
| 3 | not [be] [vb pp] [adj] | 212 |
|
| 4 | could not [be] [adj] | 189 |
|
