| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a [noun] [unc] | 905 |
|
| 2 | not [art] [noun] [unc] | 261 |
|
| 3 | not a [noun] [unc] | 84 |
|
| 4 | [not/n't] a [noun] [unc] | 84 |
|
