| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it be thought that | 21 |
|
| 2 | but it [be] thought that | 21 |
|
| 3 | but it [is] thought that | 16 |
|
| 4 | but it is thought that | 15 |
|
| 5 | but it was thought that | 5 |
|
| 6 | but it [was/were] thought that | 5 |
|
