| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it is now [vb pp] that | 10 |
|
| 2 | but it is [adv] known that | 9 |
|
| 3 | but it is generally [vb pp] that | 7 |
|
| 4 | but it is [adv] accepted that | 6 |
|
