| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [conj] [be] not a | 70 |
|
| 2 | [noun prp] [conj] [be] [adv] a | 26 |
|
| 3 | [noun prp] [conj] [be] not [art] | 7 |
|
| 4 | [noun prp] [conj] [be] [not/n't] a | 6 |
|
| 5 | [noun prp] [conj] [be] not a | 6 |
|
