| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is necessary [verb] the [noun pl] | 53 |
|
| 2 | is necessary [to-vb] the [noun pl] | 53 |
|
| 3 | is necessary consider the [noun pl] | 5 |
|
| 4 | is necessary to consider the [noun pl] | 5 |
|
