| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | difficult for [adj] [noun pl] | 62 |
|
| 2 | difficult for [adj] [noun sg] | 16 |
|
| 3 | difficult for [adj] [n mass] | 11 |
|
| 4 | difficult for [adj] people | 10 |
|
| 5 | difficult for [adj] people | 10 |
|
| 6 | difficult for other [noun] | 7 |
|
| 7 | difficult for [adj] authority | 5 |
|
| 8 | difficult for young [noun] | 5 |
|
| 9 | difficult for [adj] authorities | 5 |
|
