| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] | 18427 |
|
| 2 | it is [not/n't] | 12732 |
|
| 3 | is [not/n't] [verb] | 9355 |
|
| 4 | it [not/n't] [verb] | 191 |
|
