| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it [is] hard [to-vb] | 81 |
|
| 2 | but it [is] hard [to-vb] | 79 |
|
| 3 | but it is hard [to-vb] | 48 |
|
| 4 | but it 's hard [to-vb] | 33 |
|
| 5 | but it [is] hard to imagine | 11 |
|
| 6 | but it [is] hard to see | 9 |
|
| 7 | but it [is] hard to believe | 7 |
|
