| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be difficult for [pron] [to-vb] | 34 |
|
| 2 | be difficult for [pers pn] [to-vb] | 31 |
|
| 3 | be difficult for them [to-vb] | 9 |
|
| 4 | be difficult for they [to-vb] | 9 |
|
| 5 | be difficult for you [to-vb] | 6 |
|
| 6 | be difficult for you [to-vb] | 6 |
|
| 7 | be difficult for we [to-vb] | 6 |
|
| 8 | be difficult for he [to-vb] | 6 |
|
| 9 | be difficult for him [to-vb] | 6 |
|
| 10 | be difficult for us [to-vb] | 6 |
|
