| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb infin] it [is] necessary | 21 |
|
| 2 | [not/n't] [vb infin] it [is] necessary | 16 |
|
| 3 | not [vb infin] it [is] necessary | 16 |
|
| 4 | n't [vb infin] it [is] necessary | 13 |
|
| 5 | [adv] [vb infin] it [is] necessary | 5 |
|
| 6 | [vb infin] [conj] it [is] necessary | 21 |
|
| 7 | [vb infin] that it [is] necessary | 17 |
|
| 8 | [vb infin] [that] it [is] necessary | 17 |
|
| 9 | [vb infin] that it [is] necessary | 17 |
|
| 10 | [vb infin] it [is] necessary [to-vb] | 10 |
|
| 11 | [vb infin] it [is] necessary [verb] | 10 |
|
| 12 | [vb infin] it [is] necessary [prep] | 8 |
|
| 13 | [vb infin] it [is] necessary [prep] | 8 |
|
| 14 | [vb infin] it [is] necessary for | 6 |
|
| 15 | [vb infin] it [is] necessary for | 6 |
|
