| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] for them [to-vb] [prep] | 79 |
|
| 2 | difficult for [pron] [to-vb] [prep] | 41 |
|
| 3 | difficult for [pers pn] [to-vb] [prep] | 40 |
|
| 4 | difficult for they [to-vb] [prep] | 10 |
|
| 5 | difficult for them [verb] [prep] | 10 |
|
| 6 | difficult [prep] them [to-vb] [prep] | 10 |
|
| 7 | difficult for them [to-vb] [prep] | 10 |
|
