| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | would [verb] been [adj] [to-vb] | 545 |
|
| 2 | [modal v] [verb] been difficult [to-vb] | 32 |
|
| 3 | would [verb] [be] difficult [to-vb] | 26 |
|
| 4 | would [verb] [been] difficult [to-vb] | 26 |
|
| 5 | would [verb] be difficult [to-vb] | 26 |
|
| 6 | would [verb] been difficult [verb] | 26 |
|
