| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is necessary [verb] [art] [noun] | 290 |
|
| 2 | is also [verb] [art] [noun] | 144 |
|
| 3 | is also necessary [verb] [art] | 15 |
|
| 4 | also necessary [verb] [art] [noun] | 11 |
|
| 5 | is also necessary [verb] [noun] | 9 |
|
