| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is necessary [verb] [prep] [adj] [noun] | 24 |
|
| 2 | is necessary [to-vb] [prep] [adj] [noun] | 23 |
|
| 3 | is necessary [verb] [prep] [det] [noun] | 14 |
|
| 4 | is necessary [verb] [prep] [adj] [noun pl] | 14 |
|
| 5 | is necessary [verb] [prep] [adj] [noun sg] | 10 |
|
| 6 | is necessary [verb] [prep] [adj] [noun] | 8 |
|
| 7 | is necessary to look [prep] [adj] [noun] | 6 |
|
| 8 | is necessary look [prep] [adj] [noun] | 6 |
|
| 9 | is necessary [verb] on [adj] [noun] | 5 |
|
