| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] it is necessary [to-vb] | 175 |
|
| 2 | [that] it is necessary [to-vb] | 41 |
|
| 3 | [noun] [that] it is necessary | 9 |
|
| 4 | [noun] [that] is necessary [to-vb] | 9 |
|
| 5 | [noun] [that] it is [to-vb] | 5 |
|
