| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] more difficult [prep] | 73 |
|
| 2 | [pron] more difficult [prep] | 73 |
|
| 3 | [pers pn] more difficult [prep] | 70 |
|
| 4 | it more difficult [prep] | 70 |
|
| 5 | it more difficult [prep] | 70 |
|
| 6 | [pron] more difficult for | 70 |
|
| 7 | [pron] more difficult for | 70 |
|
