| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] that | 8865 |
|
| 2 | it [be] necessary [verb] | 1382 |
|
| 3 | [be] necessary [verb] that | 106 |
|
| 4 | it [be] necessary that | 50 |
|
| 5 | it necessary [verb] that | 9 |
|
