| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [not/n't] [verb] | 4422 |
|
| 2 | [vb mod] [not/n't] [verb] at | 570 |
|
| 3 | it [vb mod] [verb] at | 206 |
|
| 4 | it [vb mod] [not/n't] at | 5 |
|
