| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] for they [to-vb] | 182 |
|
| 2 | be [adj] for they [to-vb] | 157 |
|
| 3 | be difficult for [pron] [to-vb] | 116 |
|
| 4 | [be] difficult for they [to-vb] | 27 |
|
| 5 | be difficult [prep] they [to-vb] | 27 |
|
| 6 | be difficult for they [to-vb] | 27 |
|
| 7 | be difficult for they [verb] | 27 |
|
