| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it is [adj] for | 79 |
|
| 2 | [verb] it be necessary for | 16 |
|
| 3 | [verb] it [be] necessary for | 16 |
|
| 4 | [verb] it [is] necessary for | 12 |
|
| 5 | [verb] it is necessary [prep] | 10 |
|
| 6 | [verb] [pron] is necessary for | 7 |
|
| 7 | [verb] it is necessary for | 5 |
|
| 8 | [verb] [pers pn] is necessary for | 5 |
|
