| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [be] believed [to-vb] been a | 5 |
|
| 2 | [be] believed [to-vb] been a [noun sg] | 6 |
|
| 3 | [be] believed [to-vb] been a [noun] | 6 |
|
