| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [to-vb] that [adj] | 318 |
|
| 2 | it is necessary [to-vb] [conj] [adj] | 12 |
|
| 3 | [pron] is necessary [to-vb] that [adj] | 11 |
|
| 4 | it is necessary [verb] that [adj] | 10 |
|
| 5 | it is necessary [to-vb] [that] [adj] | 10 |
|
| 6 | it be necessary [to-vb] that [adj] | 10 |
|
| 7 | it is necessary [to-vb] that [adj] | 10 |
|
| 8 | it [be] necessary [to-vb] that [adj] | 10 |
|
| 9 | it [is] necessary [to-vb] that [adj] | 10 |
|
