| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] at [art] | 295 |
|
| 2 | may be [v-ing] [art] | 148 |
|
| 3 | may be at [art] | 31 |
|
| 4 | may be [v-ing] at | 21 |
|
