| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is necessary [verb] some | 24 |
|
| 2 | [pers pn] is necessary [verb] some | 24 |
|
| 3 | it is necessary [verb] some | 24 |
|
| 4 | [pron] is necessary [verb] some | 24 |
|
| 5 | is necessary [verb] some [noun] | 14 |
|
| 6 | is necessary [verb] some [noun sg] | 13 |
|
| 7 | is necessary [verb] some [adj] | 5 |
|
