| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | made it difficult for [pron] [to-vb] | 25 |
|
| 2 | made it difficult [prep] [pron] [to-vb] | 25 |
|
| 3 | made it difficult [prep] [pron] [to-vb] | 25 |
|
| 4 | made it difficult for [pron] [to-vb] | 25 |
|
| 5 | made it difficult [prep] [pers pn] [to-vb] | 24 |
|
| 6 | made it difficult [prep] them [to-vb] | 9 |
|
| 7 | made it difficult [prep] they [to-vb] | 9 |
|
| 8 | made it difficult [prep] him [to-vb] | 7 |
|
| 9 | made it difficult [prep] he [to-vb] | 7 |
|
