| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at a | 7173 |
|
| 2 | [v-ing] at a | 1472 |
|
| 3 | working [prep] a | 1386 |
|
| 4 | working [prep] a | 1386 |
|
| 5 | working at [art] | 270 |
|
| 6 | working at [art] | 270 |
|
| 7 | work at a | 131 |
|
| 8 | working at a | 55 |
|
| 9 | working at a | 49 |
|
