| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adj] [to-vb] the [adj] | 141 |
|
| 2 | it [adj] [to-vb] the [adj] | 121 |
|
| 3 | it difficult [to-vb] the [adj] | 40 |
|
| 4 | it possible [to-vb] the [adj] | 25 |
|
| 5 | it hard [to-vb] the [adj] | 17 |
|
| 6 | it [adj] [to-vb] the [num] | 12 |
|
| 7 | it impossible [to-vb] the [adj] | 9 |
|
| 8 | it necessary [to-vb] the [adj] | 8 |
|
| 9 | it easy [to-vb] the [adj] | 8 |
|
| 10 | it [adj] to maintain the [adj] | 7 |
|
| 11 | it [adj] to see the [adj] | 6 |
|
| 12 | it [adj] [to-vb] the national | 5 |
|
| 13 | it [adj] [to-vb] the national | 5 |
|
