| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] has be [vb pp] to be | 15 |
|
| 2 | [noun pl] has been [vb pp] to be | 15 |
|
| 3 | [noun pl] has [been] [vb pp] to be | 15 |
|
| 4 | [noun pl] has [be] shown to be | 9 |
|
