| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it difficult for him [to-vb] | 15 |
|
| 2 | it was for him [to-vb] | 12 |
|
| 3 | it was difficult for him | 6 |
|
| 4 | was difficult for him [to-vb] | 6 |
|
