| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it very difficult [conj] | 8 |
|
| 2 | find it very difficult [conj] | 5 |
|
| 3 | it [be] very difficult [conj] | 13 |
|
| 4 | it be very difficult [conj] | 13 |
|
| 5 | it [is] very difficult [conj] | 10 |
|
| 6 | it 's very difficult [conj] | 8 |
|
| 7 | it very difficult [verb] [conj] | 7 |
|
| 8 | it very difficult [to-vb] [conj] | 7 |
|
| 9 | it very difficult [conj] [pron] | 5 |
|
