| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be hard for | 181 |
|
| 2 | is hard for | 56 |
|
| 3 | was hard for | 43 |
|
| 4 | 's hard for | 30 |
|
| 5 | be hard for | 30 |
|
| 6 | been hard for | 13 |
|
| 7 | are hard for | 5 |
|
