| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [det] [prep] a | 1754 |
|
| 2 | [prep] [det] a time | 61 |
|
| 3 | [det] [prep] a time | 50 |
|
| 4 | [prep] [det] [prep] time | 23 |
|
| 5 | [prep] [prep] a time | 9 |
|
