| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] at the [adj] time | 138 |
|
| 2 | [to-vb] [adv] at the [adj] [noun] | 135 |
|
| 3 | [to-vb] [adv] [prep] the [adj] time | 32 |
|
| 4 | [to-vb] [adv] at [art] [adj] time | 19 |
|
