| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | made it difficult for [pron] [to-vb] | 25 |
|
| 2 | made it [adj] for they [to-vb] | 22 |
|
| 3 | made it [adj] for they [to-vb] | 20 |
|
| 4 | [verb] it difficult for they [to-vb] | 20 |
|
| 5 | make it difficult for they [to-vb] | 19 |
|
| 6 | [vb past] it difficult for they [to-vb] | 10 |
|
| 7 | made it difficult for they [to-vb] | 9 |
|
| 8 | made it difficult for they [verb] | 9 |
|
| 9 | made it difficult [prep] they [to-vb] | 9 |
|
| 10 | made [pron] difficult for they [to-vb] | 9 |
|
