| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] for they | 441 |
|
| 2 | be difficult for [pron] | 190 |
|
| 3 | be difficult [prep] they | 31 |
|
| 4 | be difficult for they | 31 |
|
| 5 | [be] difficult for they | 31 |
|
| 6 | be difficult [prep] they | 31 |
|
