| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have previously been [verb] in | 31 |
|
| 2 | have previously been [vb pp] in | 30 |
|
| 3 | had previously been [verb] in | 13 |
|
| 4 | has previously been [verb] in | 9 |
|
| 5 | have previously been [verb] in | 6 |
|
