| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adj] to | 637 |
|
| 2 | it necessary [prep] | 73 |
|
| 3 | it necessary [prep] | 73 |
|
| 4 | [pron] necessary to | 14 |
|
| 5 | it necessary to | 13 |
|
| 6 | [pers pn] necessary to | 13 |
|
| 7 | it necessary to | 13 |
|
