| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is necessary [verb] [noun] | 111 |
|
| 2 | it is also necessary [verb] | 50 |
|
| 3 | it is also [verb] [noun] | 21 |
|
| 4 | is also necessary [verb] [noun] | 9 |
|
