| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [adv] at [art] | 373 |
|
| 2 | [be] [v-ing] at [art] time | 97 |
|
| 3 | [be] [adv] at [art] time | 76 |
|
| 4 | [v-ing] [adv] at [art] time | 40 |
|
| 5 | [be] [v-ing] [adv] [art] time | 5 |
|
