| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] as a | 856 |
|
| 2 | [noun pl] have been [verb] as | 181 |
|
| 3 | [noun pl] have been [verb] a | 123 |
|
| 4 | [noun pl] have [verb] as a | 59 |
|
