| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [vb pp] to [be] | 717 |
|
| 2 | it be [vb pp] to [be] | 690 |
|
| 3 | it [verb] [vb pp] to [be] | 346 |
|
| 4 | it [verb] be [vb pp] to | 232 |
|
| 5 | it [verb] be [vb pp] [be] | 11 |
|
