| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [verb] at the time | 23 |
|
| 2 | [vb past] [been] [verb] at the time | 22 |
|
| 3 | [vb past] been [verb] at the time | 22 |
|
| 4 | had [be] [verb] at the time | 20 |
|
| 5 | [vb past] [be] [vb pp] at the time | 20 |
|
