| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it [be] not [verb] | 271 |
|
| 2 | it [be] not necessary [verb] | 203 |
|
| 3 | [coord] it [be] necessary [verb] | 71 |
|
| 4 | [coord] it [be] not necessary | 24 |
|
