| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's a [noun] | 17430 |
|
| 2 | [not/n't] a [noun] | 10824 |
|
| 3 | 's [not/n't] a | 1877 |
|
| 4 | 's [not/n't] [noun] | 531 |
|
