| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it very difficult | 222 |
|
| 2 | it more difficult | 169 |
|
| 3 | it extremely difficult | 61 |
|
| 4 | it increasingly difficult | 57 |
|
| 5 | it so difficult | 26 |
|
| 6 | it quite difficult | 19 |
|
| 7 | it particularly difficult | 13 |
|
| 8 | it rather difficult | 12 |
|
| 9 | it too difficult | 12 |
|
| 10 | it as difficult | 12 |
|
| 11 | it extraordinarily difficult | 5 |
|
| 12 | it less difficult | 5 |
|
