| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [vb pp] [prep] some time | 24 |
|
| 2 | had [been] [vb pp] [prep] some time | 24 |
|
| 3 | [vb past] [been] [vb pp] for some time | 19 |
|
| 4 | [vb past] [been] [vb pp] at some time | 5 |
|
