| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [conj] it [be] [verb] | 801 |
|
| 2 | [conj] [subord] it [be] [verb] | 672 |
|
| 3 | [conj] although [pron] [be] [verb] | 63 |
|
| 4 | [conj] although it [be] [verb] | 20 |
|
