| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who had [verb] for | 174 |
|
| 2 | who had [vb pp] for | 166 |
|
| 3 | who had worked [prep] | 109 |
|
| 4 | who had worked [prep] | 109 |
|
| 5 | [pron] had worked for | 71 |
|
| 6 | who [verb] worked for | 47 |
|
| 7 | who have worked for | 47 |
|
| 8 | who [vb past] worked for | 25 |
|
| 9 | who had work for | 25 |
|
| 10 | who had worked for | 24 |
|
