| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] for [verb] | 1823 |
|
| 2 | be necessary [prep] [verb] | 52 |
|
| 3 | be necessary [prep] [verb] | 52 |
|
| 4 | be necessary for [verb] | 23 |
|
| 5 | [be] necessary for [verb] | 23 |
|
