| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it was [adj] | 6069 |
|
| 2 | [conj] it be necessary | 432 |
|
| 3 | [conj] it [be] necessary | 432 |
|
| 4 | [conj] [pron] was necessary | 137 |
|
| 5 | [conj] it [was/were] necessary | 133 |
|
