| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have been [verb] | 18940 |
|
| 2 | [noun pl] have [verb] a | 2508 |
|
| 3 | have been [verb] a | 1929 |
|
| 4 | [noun pl] have been a | 259 |
|
