| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [adj] [be] not [art] | 880 |
|
| 2 | [conj] [adj] [be] [adv] a | 859 |
|
| 3 | [conj] [adj] [be] [not/n't] a | 369 |
|
| 4 | [conj] [adj] [be] not a | 368 |
|
