| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [to-vb] [num] | 134 |
|
| 2 | it is [adj] [to-vb] [num] | 124 |
|
| 3 | it is possible [to-vb] [num] | 42 |
|
| 4 | it is possible [to-vb] [num] | 42 |
|
| 5 | it is [verb] [to-vb] [num] | 23 |
|
| 6 | it is [vb pp] [to-vb] [num] | 18 |
|
| 7 | it is necessary [to-vb] [num] | 18 |
|
| 8 | it is necessary [to-vb] [num] | 18 |
|
| 9 | it is important [to-vb] [num] | 11 |
|
| 10 | it is important [to-vb] [num] | 11 |
|
| 11 | it is good [to-vb] [num] | 11 |
|
| 12 | it is useful [to-vb] [num] | 8 |
|
| 13 | it is useful [to-vb] [num] | 8 |
|
| 14 | it is better [to-vb] [num] | 7 |
|
| 15 | it is [adj -er] [to-vb] [num] | 7 |
|
| 16 | it is [v-ing] [to-vb] [num] | 5 |
|
| 17 | it is [to-vb] [num] [noun] | 6 |
|
