| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] difficult it is [verb] | 67 |
|
| 2 | [adv] difficult it is [to-vb] | 61 |
|
| 3 | [Wh adv] difficult it is [verb] | 46 |
|
| 4 | how difficult it is [verb] | 44 |
|
| 5 | how difficult it is [verb] | 44 |
|
| 6 | [adv] difficult it is [verb] | 21 |
|
| 7 | more difficult it is [verb] | 19 |
|
| 8 | more difficult it is [verb] | 19 |
|
| 9 | [adv] difficult it is to get | 10 |
|
| 10 | [adv] difficult it is get | 10 |
|
| 11 | [adv] difficult it is [v-ing] | 6 |
|
