| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it be [adv] necessary [verb] | 119 |
|
| 2 | [conj] it [be] [adv] necessary [verb] | 119 |
|
| 3 | [conj] it [be] [adv] necessary [to-vb] | 118 |
|
| 4 | [conj] it [is] [adv] necessary [verb] | 96 |
|
| 5 | [conj] it is [adv] necessary [verb] | 95 |
|
| 6 | [conj] it [be] [adv] necessary [verb] | 66 |
|
| 7 | [conj] it [be] not necessary [verb] | 53 |
|
| 8 | [conj] it [be] [not/n't] necessary [verb] | 53 |
|
| 9 | [conj] it [be] not necessary [verb] | 52 |
|
| 10 | [coord] it [be] [adv] necessary [verb] | 48 |
|
| 11 | [subord] it [be] [adv] necessary [verb] | 36 |
|
| 12 | that it [be] [adv] necessary [verb] | 35 |
|
| 13 | that it [be] [adv] necessary [verb] | 35 |
|
| 14 | [that] it [be] [adv] necessary [verb] | 35 |
|
| 15 | and it [be] [adv] necessary [verb] | 29 |
|
| 16 | and it [be] [adv] necessary [verb] | 29 |
|
| 17 | [conj] it was [adv] necessary [verb] | 23 |
|
| 18 | [conj] it [was/were] [adv] necessary [verb] | 23 |
|
| 19 | but it [be] [adv] necessary [verb] | 18 |
|
| 20 | but it [be] [adv] necessary [verb] | 18 |
|
| 21 | [conj] it [be] also necessary [verb] | 10 |
|
| 22 | [conj] it [be] also necessary [verb] | 10 |
|
| 23 | [conj] it [be] therefore necessary [verb] | 7 |
|
| 24 | [conj] it [be] often necessary [verb] | 7 |
|
| 25 | [conj] it [be] therefore necessary [verb] | 7 |
|
| 26 | [conj] it [be] often necessary [verb] | 7 |
|
| 27 | although it [be] [adv] necessary [verb] | 6 |
|
| 28 | [conj] it [be] [adv] necessary to use | 6 |
|
| 29 | if it [be] [adv] necessary [verb] | 6 |
|
| 30 | [conj] it [be] [adv] necessary use | 6 |
|
