| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [verb] for | 2975 |
|
| 2 | had [vb pp] for | 2509 |
|
| 3 | had worked [prep] | 458 |
|
| 4 | had worked [prep] | 458 |
|
| 5 | have worked for | 306 |
|
| 6 | [verb] worked for | 306 |
|
| 7 | [vb past] worked for | 127 |
|
| 8 | had work for | 125 |
|
| 9 | had worked for | 113 |
|
