| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [prep] a time | 42 |
|
| 2 | [be] [vb pp] [prep] a time | 37 |
|
| 3 | [be] performed [prep] a [noun] | 24 |
|
| 4 | [be] performed [prep] a [noun sg] | 22 |
|
| 5 | [be] performed [prep] [art] time | 7 |
|
| 6 | [be] performed [prep] [art] time | 7 |
|
| 7 | [be] perform [prep] a time | 5 |
|
| 8 | [be] performed [prep] a time | 5 |
|
| 9 | [be] performed [prep] a time | 5 |
|
| 10 | [be] performed [prep] a time | 5 |
|
