| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [verb] | 32551 |
|
| 2 | [be] it [verb] | 1834 |
|
| 3 | [be] [subord] [verb] | 1458 |
|
| 4 | [be] [subord] it | 710 |
|
