| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [vb pp] have been | 184 |
|
| 2 | are [vb pp] to have be | 178 |
|
| 3 | are believed have be | 42 |
|
| 4 | are said have be | 33 |
|
| 5 | are thought have be | 30 |
|
| 6 | are known have be | 23 |
|
| 7 | are reported have be | 13 |
|
| 8 | are estimated have be | 6 |
|
| 9 | are understood have be | 6 |
|
| 10 | are alleged have be | 5 |
|
