| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] not necessary [verb] | 175 |
|
| 2 | it [is] not [verb] that | 90 |
|
| 3 | it [is] necessary [verb] that | 45 |
|
| 4 | [is] not necessary [verb] that | 12 |
|
| 5 | it [is] not necessary that | 7 |
|
