| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] be difficult for they [to-vb] | 15 |
|
| 2 | it be difficult for they [to-vb] | 15 |
|
| 3 | [pers pn] be difficult for they [to-vb] | 15 |
|
| 4 | it be difficult for they [to-vb] | 15 |
|
| 5 | [vb mod] be difficult for they [to-vb] | 7 |
|
| 6 | [modal v] be difficult for they [to-vb] | 7 |
|
| 7 | be [adv] difficult for they [to-vb] | 11 |
|
| 8 | be [adv] difficult for they [to-vb] | 11 |
|
| 9 | be very difficult for they [to-vb] | 5 |
|
| 10 | be very difficult for they [to-vb] | 5 |
|
| 11 | be difficult for they [to-vb] [prep] | 5 |
|
| 12 | be difficult for they [to-vb] [prep] | 5 |
|
| 13 | be difficult for they [to-vb] [adj] | 5 |
|
| 14 | be difficult for they [to-vb] [adj] | 5 |
|
