| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it [be] [adv] known that | 10 |
|
| 2 | but it [be] [adv] known that | 10 |
|
| 3 | but it [be] now known that | 5 |
|
| 4 | but it [be] now known that | 5 |
|
| 5 | but it [be] known that [pron] | 5 |
|
