| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [subord] it [be] [verb] [prep] | 408 |
|
| 2 | [adv] [subord] [pron] [is] [verb] [prep] | 345 |
|
| 3 | [adv] [conj] it [is] [verb] [prep] | 294 |
|
