| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adv] hard [prep] | 71 |
|
| 2 | it be [adv] [prep] us | 23 |
|
| 3 | it be hard [prep] us | 10 |
|
| 4 | be [adv] hard [prep] us | 8 |
|
