| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] hard [to-vb] a | 19 |
|
| 2 | it be [adv] hard [verb] a | 19 |
|
| 3 | it [is] [adv] hard [verb] a | 18 |
|
| 4 | it [be] very hard [verb] a | 11 |
|
| 5 | it 's [adv] hard [verb] a | 9 |
|
| 6 | it is [adv] hard [verb] a | 9 |
|
| 7 | it [be] [adv] hard find a | 6 |
|
| 8 | it [be] [adv] hard to find a | 6 |
|
