| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at some time | 49 |
|
| 2 | [be] [vb pp] at some | 46 |
|
| 3 | [be] [vb pp] some time | 16 |
|
| 4 | [be] [vb pp] at time | 12 |
|
