| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | difficult for [adj] [noun] | 91 |
|
| 2 | difficult [prep] [adj] [noun pl] | 85 |
|
| 3 | difficult [prep] [adj] [noun sg] | 28 |
|
| 4 | difficult in [adj] [noun] | 16 |
|
| 5 | difficult [prep] [adj] [n mass] | 12 |
|
| 6 | difficult [prep] [adj] people | 10 |
|
| 7 | difficult [prep] [adj] people | 10 |
|
| 8 | difficult [prep] other [noun] | 7 |
|
| 9 | difficult [prep] [adj] authority | 5 |
|
| 10 | difficult with [adj] [noun] | 5 |
|
| 11 | difficult [prep] [adj] authorities | 5 |
|
| 12 | difficult [prep] young [noun] | 5 |
|
