| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] it is [verb] that | 210 |
|
| 2 | [noun] it is necessary [verb] | 175 |
|
| 3 | it is necessary [verb] that | 43 |
|
| 4 | [noun] it is necessary that | 11 |
|
| 5 | [noun] is necessary [verb] that | 6 |
|
