| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [adj] [noun] [prep] | 22008 |
|
| 2 | necessary for [adj] [noun] | 219 |
|
| 3 | necessary [adj] [noun] [prep] | 130 |
|
| 4 | necessary for [noun] [prep] | 58 |
|
| 5 | necessary for [adj] [prep] | 8 |
|
