| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [indef pn] at [art] time and | 8 |
|
| 2 | [verb] one at [art] time and | 7 |
|
| 3 | [verb] [indef pn] at a time and | 6 |
|
| 4 | [vb pp] [indef pn] at [art] time and | 5 |
|
