| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [be] [vb pp] at a [noun] | 75 |
|
| 2 | [prep] [be] [vb pp] at a [noun sg] | 72 |
|
| 3 | [prep] [be] [vb pp] at [art] time | 20 |
|
| 4 | [prep] [be] [vb pp] at [art] time | 20 |
|
| 5 | [prep] [be] [vb pp] [prep] a time | 9 |
|
| 6 | [prep] [be] [vb pp] [prep] a time | 9 |
|
| 7 | [prep] [be] [vb pp] at a time | 6 |
|
| 8 | [prep] [be] [vb pp] at a time | 5 |
|
| 9 | [prep] [be] [vb pp] at a time | 5 |
|
| 10 | [prep] [be] [verb] at a time | 5 |
|
| 11 | [prep] [be] [vb pp] at a time | 5 |
|
| 12 | [prep] [be] [vb pp] at a time | 5 |
|
