| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] | 51063 |
|
| 2 | [be] [verb] [num] | 5949 |
|
| 3 | it [be] [num] | 5136 |
|
| 4 | it [verb] [num] | 2061 |
|
