| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is necessary [to-vb] [adj] | 162 |
|
| 2 | it is [adj] [to-vb] these | 85 |
|
| 3 | it is [adj] [to-vb] these | 80 |
|
| 4 | it [be] necessary [to-vb] these | 9 |
|
| 5 | it [is] necessary [to-vb] these | 9 |
|
| 6 | it be necessary [to-vb] these | 9 |
|
| 7 | [pers pn] is necessary [to-vb] these | 8 |
|
| 8 | it is necessary [to-vb] these | 8 |
|
| 9 | it is necessary [to-vb] these | 8 |
|
| 10 | [pron] is necessary [to-vb] these | 8 |
|
| 11 | it is necessary [verb] these | 8 |
|
