| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adj] for | 1269 |
|
| 2 | it [be] [adv] necessary for | 96 |
|
| 3 | it be [adv] necessary for | 96 |
|
| 4 | it is [adv] necessary [prep] | 90 |
|
| 5 | [pron] is [adv] necessary for | 76 |
|
| 6 | it [is] [adv] necessary for | 69 |
|
| 7 | it is [adv] necessary for | 66 |
|
| 8 | [pers pn] is [adv] necessary for | 66 |
|
