| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [prep] | 125 |
|
| 2 | be [prep] [to-vb] | 60 |
|
| 3 | it [prep] [to-vb] | 22 |
|
| 4 | it be [to-vb] | 10 |
|
