| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be difficult for her | 10 |
|
| 2 | it [be] difficult for her | 10 |
|
| 3 | it [was/were] difficult for her | 5 |
|
| 4 | it was difficult for her | 5 |
|
| 5 | it [is] difficult for her | 5 |
|
