| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [verb] at a [adj] | 157 |
|
| 2 | [noun pl] operate [prep] a [adj] | 44 |
|
| 3 | [noun pl] operate [prep] a [adj] | 44 |
|
| 4 | [noun pl] operate at [art] [adj] | 14 |
|
| 5 | [noun pl] operate at [art] [adj] | 14 |
|
| 6 | [noun pl] operate at a [adj] | 7 |
|
| 7 | [noun] operate at a [adj] | 6 |
|
| 8 | [noun pl] operate at a [adj] | 5 |
|
