| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at a | 2102 |
|
| 2 | be [verb] [pron] a | 612 |
|
| 3 | [verb] [pron] at a | 438 |
|
| 4 | be [verb] [pron] at | 261 |
|
| 5 | be [pron] at a | 10 |
|
