| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it be believed that | 8 |
|
| 2 | [adv] it [be] believed that | 8 |
|
| 3 | [adv] it was believed that | 7 |
|
| 4 | [adv] it [was/were] believed that | 7 |
|
