| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be believed [adj] [noun sg] | 10 |
|
| 2 | it [is] believed [adj] [noun sg] | 9 |
|
| 3 | it is believed [adj] [noun sg] | 7 |
|
| 4 | it [be] believed [det] [noun sg] | 6 |
|
