| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is know | 148 |
|
| 2 | although it is [verb] | 112 |
|
| 3 | [subord] it is know | 110 |
|
| 4 | although it [be] know | 11 |
|
| 5 | although it be know | 11 |
|
| 6 | although [pron] is know | 10 |
|
| 7 | although it is know | 6 |
|
| 8 | although it [is] know | 6 |
|
