| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [vb pp] at a [noun] | 20 |
|
| 2 | [vb past] [been] [vb pp] at a [noun] | 19 |
|
| 3 | [vb past] been [vb pp] at a [noun] | 19 |
|
| 4 | had [be] [vb pp] at a [noun] | 19 |
|
| 5 | [vb past] [be] [vb pp] at a [noun sg] | 18 |
|
| 6 | [vb past] [be] [vb pp] at a meeting | 6 |
|
| 7 | [vb past] [be] [vb pp] at a meeting | 6 |
|
