| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who worked [prep] a [noun sg] | 39 |
|
| 2 | who works [prep] a [noun sg] | 30 |
|
| 3 | who work as a [noun sg] | 30 |
|
| 4 | who work in a [noun sg] | 18 |
|
| 5 | who work for a [noun sg] | 14 |
|
