| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] for them | 139 |
|
| 2 | is [adj] for them | 111 |
|
| 3 | is difficult for [pron] | 64 |
|
| 4 | is difficult for [pers pn] | 55 |
|
| 5 | be difficult for them | 31 |
|
| 6 | [be] difficult for them | 31 |
|
| 7 | [is] difficult for them | 14 |
|
| 8 | is difficult for they | 13 |
|
| 9 | is difficult for them | 13 |
|
| 10 | is difficult [prep] them | 13 |
|
