| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] for us [verb] | 355 |
|
| 2 | necessary for [pron] [verb] | 142 |
|
| 3 | necessary for [pers pn] [verb] | 130 |
|
| 4 | necessary [prep] us [verb] | 20 |
|
| 5 | necessary for we [verb] | 20 |
|
| 6 | necessary [prep] us [verb] | 20 |
|
| 7 | necessary for us [verb] | 20 |
|
