| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be difficult [prep] [pers pn] [to-vb] | 27 |
|
| 2 | [vb mod] be difficult [prep] [pers pn] [to-vb] | 27 |
|
| 3 | would be difficult [prep] [pers pn] [to-vb] | 11 |
|
| 4 | would be difficult [prep] [pers pn] [to-vb] | 11 |
|
| 5 | may be difficult [prep] [pers pn] [to-vb] | 8 |
|
| 6 | may be difficult [prep] [pers pn] [to-vb] | 8 |
|
| 7 | will be difficult [prep] [pers pn] [to-vb] | 6 |
|
| 8 | will be difficult [prep] [pers pn] [to-vb] | 6 |
|
| 9 | be [adv] difficult [prep] [pers pn] [to-vb] | 15 |
|
| 10 | be [adv] difficult [prep] [pers pn] [to-vb] | 15 |
|
| 11 | be very difficult [prep] [pers pn] [to-vb] | 9 |
|
| 12 | be very difficult [prep] [pers pn] [to-vb] | 9 |
|
| 13 | be difficult [prep] [pers pn] [to-vb] [pron] | 8 |
|
| 14 | be difficult [prep] [pers pn] [to-vb] [art] | 6 |
|
| 15 | be difficult [prep] [pers pn] [to-vb] [art] | 6 |
|
