| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | necessary [to-vb] the [adj] | 266 |
|
| 2 | it [to-vb] the [adj] | 101 |
|
| 3 | it necessary [to-vb] the | 58 |
|
| 4 | it necessary [to-vb] [adj] | 55 |
|
