| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [conj] it [is] difficult | 105 |
|
| 2 | [noun] as it [is] [adj] | 83 |
|
| 3 | [noun] as it [is] [adj] | 71 |
|
| 4 | [noun] as it [be] difficult | 6 |
|
| 5 | [noun] as it [is] difficult | 6 |
|
| 6 | [noun] as [pron] [is] difficult | 6 |
|
