| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be believed [that] | 243 |
|
| 2 | it be believed that | 243 |
|
| 3 | it is believed [that] | 149 |
|
| 4 | it was believed [that] | 88 |
|
| 5 | it 's believed [that] | 5 |
|
