| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [vb pp] it difficult for | 12 |
|
| 2 | have [vb pp] it difficult for | 12 |
|
| 3 | [vb -s] [vb pp] it difficult for | 9 |
|
| 4 | has [vb pp] it difficult for | 9 |
|
| 5 | [vb pp] it [adv] difficult for | 13 |
|
| 6 | [vb pp] it [adv] difficult for | 13 |
|
| 7 | [vb pp] it more difficult for | 5 |
|
| 8 | [vb pp] it more difficult for | 5 |
|
| 9 | [vb pp] it difficult for [noun] | 6 |
|
