| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] at | 1630 |
|
| 2 | have been [vb pp] time | 13 |
|
| 3 | been [vb pp] at time | 9 |
|
| 4 | have [vb pp] at time | 6 |
|
