| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be difficult for [pron] [to-vb] | 30 |
|
| 2 | [modal v] be difficult for [pron] [to-vb] | 30 |
|
| 3 | [modal v] be difficult for [pers pn] [to-vb] | 27 |
|
| 4 | would be difficult for [pron] [to-vb] | 13 |
|
| 5 | would be difficult for [pron] [to-vb] | 13 |
|
| 6 | may be difficult for [pron] [to-vb] | 8 |
|
| 7 | may be difficult for [pron] [to-vb] | 8 |
|
| 8 | will be difficult for [pron] [to-vb] | 7 |
|
| 9 | [modal v] be difficult for they [to-vb] | 7 |
|
| 10 | will be difficult for [pron] [to-vb] | 7 |
|
| 11 | [modal v] be difficult for them [to-vb] | 7 |
|
| 12 | [modal v] be difficult for you [to-vb] | 6 |
|
| 13 | [modal v] be difficult for you [to-vb] | 6 |
|
| 14 | [modal v] be difficult for us [to-vb] | 5 |
|
| 15 | [modal v] be difficult for him [to-vb] | 5 |
|
| 16 | [modal v] be difficult for he [to-vb] | 5 |
|
| 17 | [modal v] be difficult for we [to-vb] | 5 |
|
