| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] at the time | 80 |
|
| 2 | [det] at the time | 69 |
|
| 3 | [vb infin] [det] the time | 52 |
|
| 4 | [vb infin] [det] at the | 51 |
|
