| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is difficult [to-vb] [det] | 115 |
|
| 2 | is difficult [to-vb] [adj] | 77 |
|
| 3 | is difficult [to-vb] any | 38 |
|
| 4 | is difficult [to-vb] any | 38 |
|
| 5 | is difficult [to-vb] this | 22 |
|
| 6 | is difficult [to-vb] this | 22 |
|
| 7 | is difficult [to-vb] such | 14 |
|
| 8 | is difficult [to-vb] such | 14 |
|
| 9 | is difficult [to-vb] these | 13 |
|
| 10 | is difficult to find [adj] | 13 |
|
| 11 | is difficult [to-vb] these | 13 |
|
| 12 | is difficult [to-vb] that | 11 |
|
| 13 | is difficult to imagine [adj] | 11 |
|
| 14 | is difficult [to-vb] that | 11 |
|
| 15 | is difficult to see [adj] | 8 |
|
| 16 | is difficult to obtain [adj] | 8 |
|
| 17 | is difficult to accept [adj] | 6 |
|
| 18 | is difficult [to-vb] precise | 5 |
|
| 19 | is difficult [to-vb] accurate | 5 |
|
| 20 | is difficult to distinguish [adj] | 5 |
|
| 21 | is difficult [to-vb] accurate | 5 |
|
| 22 | is difficult [to-vb] precise | 5 |
|
| 23 | is difficult to reconcile [adj] | 5 |
|
| 24 | is difficult to get [adj] | 5 |
|
