| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [vb pp] | 14344 |
|
| 2 | [verb] [vb pp] so | 3149 |
|
| 3 | it [verb] so | 964 |
|
| 4 | it [vb pp] so | 18 |
|
