| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [det] at [art] time | 37 |
|
| 2 | [prep] [det] at [art] time | 37 |
|
| 3 | [prep] [adj] at a time | 22 |
|
| 4 | [prep] [det] at a [noun] | 13 |
|
| 5 | [prep] [det] [prep] a time | 6 |
|
| 6 | [prep] [det] [prep] a time | 6 |
|
| 7 | [prep] [det] at a time | 5 |
|
| 8 | [prep] [det] at a time | 5 |
|
