| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not a [no cls] | 26 |
|
| 2 | be not a [unc] | 20 |
|
| 3 | 's not a [unc] | 12 |
|
| 4 | is not a [unc] | 6 |
|
| 5 | be n't a [unc] | 6 |
|
