| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] hard for us | 5 |
|
| 2 | it [is] [adv] hard for us | 5 |
|
| 3 | it [is] hard for us [verb] | 7 |
|
| 4 | it [is] hard for us [to-vb] | 7 |
|
