| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] at [art] | 332 |
|
| 2 | [v-ing] at [art] time | 224 |
|
| 3 | [is] at [art] time | 22 |
|
| 4 | [is] [v-ing] [art] time | 13 |
|
