| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at [art] time [adv] | 29 |
|
| 2 | [prep] [v-ing] at [art] time | 22 |
|
| 3 | [prep] [v-ing] at [art] [adv] | 10 |
|
| 4 | [prep] [v-ing] [art] time [adv] | 6 |
|
