| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [been] [vb pp] as a | 11 |
|
| 2 | [v-ing] [been] [verb] as a | 11 |
|
| 3 | [v-ing] been [verb] as a | 11 |
|
| 4 | having [been] [verb] as a | 11 |
|
