| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have been [verb] at | 333 |
|
| 2 | have been [verb] at a | 152 |
|
| 3 | [noun pl] have been [verb] a | 123 |
|
| 4 | [noun pl] have [verb] at a | 29 |
|
