| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] at [art] same time [v-ing] | 10 |
|
| 2 | [prep] at [art] [det] time [v-ing] | 10 |
|
| 3 | [prep] at the [det] time [v-ing] | 10 |
|
| 4 | without at [art] [det] time [v-ing] | 9 |
|
