| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] hard [verb] which | 16 |
|
| 2 | it be hard [verb] which | 16 |
|
| 3 | it [be] hard [to-vb] which | 16 |
|
| 4 | it [be] hard [verb] which | 15 |
|
| 5 | it [was/were] hard [verb] which | 8 |
|
| 6 | it was hard [verb] which | 8 |
|
| 7 | it [is] hard [verb] which | 8 |
|
| 8 | it [be] hard tell which | 7 |
|
| 9 | it [be] hard to tell which | 7 |
|
| 10 | it is hard [verb] which | 6 |
|
