| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] difficult for those | 17 |
|
| 2 | [adv] difficult for those | 17 |
|
| 3 | more difficult for those | 6 |
|
| 4 | more difficult for those | 6 |
|
| 5 | [be] difficult for those | 5 |
|
| 6 | be difficult for those | 5 |
|
| 7 | difficult for those [prep] | 13 |
|
| 8 | difficult for those [prep] | 13 |
|
| 9 | difficult for those [pron] | 5 |
|
| 10 | difficult for those [verb] | 5 |
|
