| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] be necessary [verb] | 98 |
|
| 2 | [noun pl] be necessary for | 69 |
|
| 3 | [noun pl] be for [verb] | 42 |
|
| 4 | [noun pl] necessary for [verb] | 23 |
|
| 5 | be necessary for [verb] | 23 |
|
