| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it is [not/n't] | 995 |
|
| 2 | [vb pp] but it is | 49 |
|
| 3 | [vb pp] it is [not/n't] | 23 |
|
| 4 | [vb pp] but is [not/n't] | 10 |
|
