| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [det] [prep] a time | 9 |
|
| 2 | and [det] at a time | 9 |
|
| 3 | and [det] at a time | 9 |
|
| 4 | and this [prep] a time | 8 |
|
