| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [subord] [pron] [is] [verb] | 696 |
|
| 2 | [conj] [subord] it [be] [verb] | 672 |
|
| 3 | [conj] [conj] it [is] [verb] | 465 |
|
