| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [pers pn] necessary for | 8 |
|
| 2 | [vb base] it necessary for | 7 |
|
| 3 | [vb base] it necessary for | 7 |
|
| 4 | make [pron] necessary for | 5 |
|
