| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] | 51078 |
|
| 2 | [be] [verb] [noun] | 37481 |
|
| 3 | it [be] [noun] | 16269 |
|
| 4 | it [verb] [noun] | 9319 |
|
