| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] at [art] | 7578 |
|
| 2 | be [v-ing] at [art] | 2298 |
|
| 3 | be [vb pp] [v-ing] [art] | 1181 |
|
| 4 | be [vb pp] [v-ing] at | 65 |
|
| 5 | [vb pp] [v-ing] at [art] | 63 |
|
