| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is not [adj] [verb] that | 121 |
|
| 2 | it is [adv] necessary [verb] that | 24 |
|
| 3 | it is not necessary [verb] [conj] | 14 |
|
| 4 | it be not necessary [verb] that | 13 |
|
| 5 | it [be] not necessary [verb] that | 13 |
|
| 6 | it [is] not necessary [verb] that | 12 |
|
| 7 | [pron] is not necessary [verb] that | 12 |
|
