| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's [adj] | 25850 |
|
| 2 | it 's [adj] | 18100 |
|
| 3 | it [be] hard | 1827 |
|
| 4 | it be hard | 1827 |
|
| 5 | it [is] hard | 1384 |
|
| 6 | it 's hard | 613 |
|
| 7 | [pron] 's hard | 579 |
|
