| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adj] [to-vb] these [noun] | 69 |
|
| 2 | it be [adj] [to-vb] these [noun] | 65 |
|
| 3 | it be difficult [to-vb] these [noun] | 14 |
|
| 4 | it be difficult [to-vb] these [noun] | 14 |
|
| 5 | it be important [to-vb] these [noun] | 11 |
|
| 6 | it be important [to-vb] these [noun] | 11 |
|
| 7 | it be [verb] [to-vb] these [noun] | 8 |
|
| 8 | it be necessary [to-vb] these [noun] | 8 |
|
| 9 | it be necessary [to-vb] these [noun] | 8 |
|
| 10 | it be [vb pp] [to-vb] these [noun] | 7 |
|
| 11 | it be impossible [to-vb] these [noun] | 5 |
|
| 12 | it be good [to-vb] these [noun] | 5 |
|
| 13 | it be impossible [to-vb] these [noun] | 5 |
|
