| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] | 14689 |
|
| 2 | it is [not/n't] | 12746 |
|
| 3 | is [not/n't] [vb pp] | 6108 |
|
| 4 | it [not/n't] [vb pp] | 39 |
|
