| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [indef pn] at [art] time | 7 |
|
| 2 | [vb infin] one at [art] time | 6 |
|
| 3 | [vb infin] [indef pn] at a time | 6 |
|
