| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a [noun prp] [noun] | 575 |
|
| 2 | n't a [noun] [noun] | 169 |
|
| 3 | not a [noun prp] [noun] | 62 |
|
| 4 | [not/n't] a [noun prp] [noun] | 62 |
|
| 5 | n't [art] [noun prp] [noun] | 29 |
|
