| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] [prep] [verb] | 561 |
|
| 2 | it [be] [verb] [prep] [verb] | 233 |
|
| 3 | [pron] [be] [verb] to [verb] | 216 |
|
| 4 | it [be] [verb] to [verb] | 20 |
|
