| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] at a [noun] | 920 |
|
| 2 | [be] [vb pp] at a [noun sg] | 857 |
|
| 3 | [be] [vb pp] at [art] time | 392 |
|
| 4 | [be] [vb pp] [prep] a time | 141 |
|
| 5 | [be] [vb pp] [prep] a time | 141 |
|
| 6 | [be] [verb] at a time | 107 |
|
| 7 | [be] [vb pp] at a time | 94 |
|
| 8 | [be] [vb pp] at a time | 94 |
|
