| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not [be] [vb pp] [adj] [noun sg] | 56 |
|
| 2 | could [adv] [be] [vb pp] [adj] [noun sg] | 10 |
|
| 3 | could not [be] [vb pp] [adj] [noun] | 7 |
|
| 4 | could not [be] [verb] [adj] [noun sg] | 6 |
|
