| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary [verb] some [adj] | 6 |
|
| 2 | [be] necessary [verb] some [adj] | 6 |
|
| 3 | necessary [verb] some [adj] [noun] | 9 |
|
| 4 | necessary [verb] some [adj] [noun sg] | 7 |
|
