| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [prep] | 23916 |
|
| 2 | it [be] [to-vb] | 2237 |
|
| 3 | [be] [prep] [to-vb] | 183 |
|
| 4 | it [prep] [to-vb] | 22 |
|
