| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] at [adj] time of | 101 |
|
| 2 | [v-ing] [adv] at [adj] time | 27 |
|
| 3 | [v-ing] [adv] at [adj] of | 22 |
|
| 4 | [v-ing] at [adj] time of | 8 |
|
