| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and it be [adv] necessary [verb] | 29 |
|
| 2 | and it be [adv] necessary [verb] | 24 |
|
| 3 | and it be often [adj] [verb] | 20 |
|
| 4 | [conj] it be often necessary [verb] | 7 |
|
| 5 | [coord] it be often necessary [verb] | 5 |
|
| 6 | and [pron] be often necessary [verb] | 5 |
|
| 7 | and it be often necessary [verb] | 5 |
|
| 8 | and it be often necessary [verb] | 5 |
|
| 9 | and [pers pn] be often necessary [verb] | 5 |
|
| 10 | and it [be] often necessary [verb] | 5 |
|
| 11 | and it be often necessary [verb] | 5 |
|
