| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [adj] [noun sg] | 237 |
|
| 2 | could n't be [adj] | 231 |
|
| 3 | n't be [adj] [noun sg] | 159 |
|
| 4 | could n't be [noun sg] | 17 |
|
| 5 | could n't [adj] [noun sg] | 8 |
|
