| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [noun pl] have been [adj] | 328 |
|
| 2 | [noun pl] must have been [adj] | 53 |
|
| 3 | [art] [noun pl] must have been | 49 |
|
| 4 | [art] [noun pl] must have [adj] | 5 |
|
