| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and it [modal v] be difficult [to-vb] | 26 |
|
| 2 | and it [modal v] be difficult [to-vb] | 26 |
|
| 3 | and it [vb mod] be difficult [to-vb] | 26 |
|
| 4 | and it would be difficult [to-vb] | 12 |
|
| 5 | and it would be difficult [to-vb] | 12 |
|
| 6 | and it will be difficult [to-vb] | 5 |
|
| 7 | and it can be difficult [to-vb] | 5 |
|
| 8 | and it can be difficult [to-vb] | 5 |
|
