| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be necessary [verb] [noun] | 145 |
|
| 2 | it be [verb] two [noun] | 14 |
|
| 3 | it be necessary [verb] two | 14 |
|
| 4 | be necessary [verb] two [noun] | 10 |
|
