| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] a [num ord] time | 9 |
|
| 2 | [be] [vb pp] [prep] a [num ord] time | 9 |
|
| 3 | [vb pp] [prep] a [num ord] time [prep] | 6 |
|
| 4 | [vb pp] [prep] a [num ord] time [prep] | 6 |
|
