| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] difficult it [be] | 147 |
|
| 2 | [adv] difficult it be | 147 |
|
| 3 | [Wh adv] difficult it [be] | 117 |
|
| 4 | how difficult it [be] | 115 |
|
| 5 | how difficult it [be] | 115 |
|
| 6 | [adv] difficult it [is] | 106 |
|
| 7 | [adv] difficult it is | 104 |
|
| 8 | [adv] difficult it [was/were] | 41 |
|
| 9 | [adv] difficult it was | 41 |
|
| 10 | [adv] difficult it [be] | 29 |
|
| 11 | more difficult it [be] | 23 |
|
| 12 | more difficult it [be] | 23 |
|
