| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's hard [to-vb] that | 24 |
|
| 2 | it 's hard [verb] that | 24 |
|
| 3 | it 's hard believe that | 19 |
|
| 4 | it 's hard to believe that | 19 |
|
