| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [verb] be [v-ing] | 590 |
|
| 2 | [verb] be [v-ing] at | 461 |
|
| 3 | [conj] [verb] [v-ing] at | 120 |
|
| 4 | [conj] be [v-ing] at | 112 |
|
| 5 | [conj] [verb] be at | 30 |
|
