| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at a | 2102 |
|
| 2 | be [verb] at [noun pl] | 601 |
|
| 3 | be [verb] a [noun pl] | 80 |
|
| 4 | [verb] at a [noun pl] | 59 |
|
| 5 | be at a [noun pl] | 7 |
|
