| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | more difficult [verb] | 815 |
|
| 2 | more difficult [to-vb] | 810 |
|
| 3 | more [adj] to say | 75 |
|
| 4 | more [adj] to say | 75 |
|
| 5 | [adv] difficult to say | 45 |
|
| 6 | [adv] difficult to say | 42 |
|
| 7 | more difficult say | 5 |
|
| 8 | more difficult to say | 5 |
|
| 9 | more difficult to say | 5 |
|
