| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] believed that [noun] [vb -s] | 7 |
|
| 2 | it [is] believed [that] [noun] [vb -s] | 7 |
|
| 3 | it be believed [that] [noun] [vb -s] | 7 |
|
| 4 | it is believed [that] [noun] [vb -s] | 7 |
|
