| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a [noun] | 68100 |
|
| 2 | [not/n't] a [noun] | 9521 |
|
| 3 | not a [noun] | 9514 |
|
| 4 | n't [art] [noun] | 3002 |
|
| 5 | n't [art] [noun] | 3002 |
|
| 6 | n't a [noun] | 1686 |
|
