| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at the [det] time | 140 |
|
| 2 | [prep] at the [det] time | 25 |
|
| 3 | [prep] [v-ing] at the time | 19 |
|
| 4 | [prep] [v-ing] at the [det] | 19 |
|
| 5 | [prep] [v-ing] at [det] time | 10 |
|
