| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adj] [to-vb] that | 562 |
|
| 2 | it is [adv] difficult [to-vb] [conj] | 59 |
|
| 3 | it [be] [adv] difficult [to-vb] that | 39 |
|
| 4 | it be [adv] difficult [to-vb] that | 39 |
|
| 5 | it [is] [adv] difficult [to-vb] that | 30 |
|
| 6 | it is [adv] difficult [to-vb] that | 28 |
|
| 7 | it is [adv] difficult [verb] that | 28 |
|
| 8 | it is [adv] difficult [to-vb] that | 28 |
|
| 9 | [pron] is [adv] difficult [to-vb] that | 28 |
|
| 10 | it is [adv] difficult [to-vb] [that] | 28 |
|
| 11 | [pers pn] is [adv] difficult [to-vb] that | 28 |
|
