| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] it necessary | 86 |
|
| 2 | be it necessary | 86 |
|
| 3 | [is] it necessary | 70 |
|
| 4 | is it necessary | 70 |
|
| 5 | was it necessary | 16 |
|
| 6 | [was/were] it necessary | 16 |
|
