| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it is [adv] [verb] that | 49 |
|
| 2 | but it is [adv] [vb pp] that | 47 |
|
| 3 | [conj] it is [adv] known that | 29 |
|
| 4 | but it is [adv] known [conj] | 20 |
|
| 5 | [coord] it is [adv] known that | 14 |
|
| 6 | but it be [adv] known that | 10 |
|
| 7 | but it [is] [adv] known that | 10 |
|
| 8 | but it [be] [adv] known that | 10 |
|
| 9 | but [pron] is [adv] known that | 9 |
|
| 10 | but it is [adv] know that | 9 |
|
| 11 | but it is [adv] known that | 9 |
|
| 12 | but it is [adv] known [that] | 9 |
|
| 13 | but it is [adv] known that | 9 |
|
