| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [be] [pron] | 854 |
|
| 2 | it [be] [pron] [to-vb] | 384 |
|
| 3 | it [modal v] [be] [to-vb] | 211 |
|
| 4 | [modal v] [be] [pron] [to-vb] | 104 |
|
