| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [be] [vb pp] to | 457 |
|
| 2 | [vb base] it [modal v] [be] [vb pp] | 155 |
|
| 3 | [vb base] [modal v] [be] [vb pp] to | 20 |
|
