| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [conj] at the [adj] time | 47 |
|
| 2 | [to-vb] [conj] at the [adj] [noun] | 12 |
|
| 3 | [to-vb] [conj] [prep] the [adj] time | 9 |
|
| 4 | [to-vb] [conj] at [art] [adj] time | 9 |
|
