| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] a [noun] | 9521 |
|
| 2 | been a [noun] | 6255 |
|
| 3 | [not/n't] been a | 302 |
|
| 4 | [not/n't] been [noun] | 99 |
|
