| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have previously [been] [verb] on | 7 |
|
| 2 | have previously be [verb] on | 7 |
|
| 3 | have previously been [verb] on | 7 |
|
| 4 | have previously [be] [vb pp] on | 6 |
|
| 5 | had previously [be] [verb] on | 5 |
|
