| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] necessary [verb] | 479 |
|
| 2 | it [is] [adv] necessary [to-vb] | 478 |
|
| 3 | it [is] [adv] [adj] to consider | 82 |
|
| 4 | it [is] [adv] [adj] to consider | 81 |
|
| 5 | it [be] [adv] necessary to consider | 23 |
|
| 6 | it [is] [adv] necessary consider | 22 |
|
| 7 | it [is] [adv] necessary to consider | 22 |
|
| 8 | [pron] [is] [adv] necessary to consider | 22 |
|
