| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [vb pp] as [noun sg] | 42 |
|
| 2 | have been [vb pp] as [noun sg] | 42 |
|
| 3 | have [been] [vb pp] as part | 17 |
|
| 4 | have [been] used as [noun sg] | 7 |
|
