| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | difficult for [pers pn] [to-vb] [prep] | 40 |
|
| 2 | difficult for [pers pn] [to-vb] [prep] | 40 |
|
| 3 | difficult for [pers pn] [to-vb] to | 11 |
|
| 4 | difficult for them [to-vb] [prep] | 10 |
|
| 5 | difficult for him [to-vb] [prep] | 8 |
|
| 6 | difficult for you [to-vb] [prep] | 7 |
|
| 7 | difficult for [pers pn] [to-vb] in | 6 |
|
| 8 | difficult for [pers pn] [to-vb] with | 6 |
|
| 9 | difficult for us [to-vb] [prep] | 6 |
|
