| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] necessary [to-vb] | 478 |
|
| 2 | [that] it [is] necessary [to-vb] | 45 |
|
| 3 | [that] it [is] [adv] necessary | 44 |
|
| 4 | [that] it [is] [adv] [to-vb] | 8 |
|
