| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be believed to be | 43 |
|
| 2 | it be believed to [be] | 43 |
|
| 3 | it be believed to [be] | 43 |
|
| 4 | it is believed to [be] | 31 |
|
| 5 | it was believed to [be] | 9 |
|
