| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | make it difficult [prep] [adj] [noun pl] | 17 |
|
| 2 | [verb] it difficult for [adj] [noun pl] | 16 |
|
| 3 | [verb] it difficult [prep] [adj] [noun pl] | 11 |
|
| 4 | makes it difficult [prep] [adj] [noun pl] | 7 |
|
| 5 | [vb -s] it difficult [prep] [adj] [noun pl] | 7 |
|
| 6 | [verb] it difficult [prep] [det] [noun pl] | 5 |
|
