| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] is that | 24 |
|
| 2 | has [been] [vb pp] is that | 12 |
|
| 3 | have [been] [vb pp] is that | 6 |
|
| 4 | have [been] suggested is that | 5 |
|
