| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] [adj] [verb] it | 152 |
|
| 2 | it [is] [adv] necessary [verb] [pron] | 32 |
|
| 3 | it [be] [adv] necessary [verb] it | 7 |
|
| 4 | [pron] [is] [adv] necessary [verb] it | 6 |
|
