| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adj] for them [verb] | 186 |
|
| 2 | [be] difficult for [pron] [verb] | 117 |
|
| 3 | [be] difficult for [pers pn] [verb] | 106 |
|
| 4 | [be] difficult for they [verb] | 27 |
|
| 5 | [be] difficult for them [verb] | 27 |
|
| 6 | [be] difficult [prep] them [verb] | 27 |
|
| 7 | [be] difficult [prep] them [verb] | 27 |
|
