| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be working [prep] | 156 |
|
| 2 | had been working [prep] | 155 |
|
| 3 | had be working on | 46 |
|
| 4 | had be working on | 46 |
|
| 5 | had be working in | 26 |
|
| 6 | had be working in | 26 |
|
| 7 | had be working for | 24 |
|
| 8 | had be working for | 24 |
|
| 9 | had be working at | 18 |
|
| 10 | had be working at | 18 |
|
| 11 | had be working with | 14 |
|
| 12 | had be working with | 14 |
|
| 13 | had be working as | 9 |
|
| 14 | had be working as | 9 |
|
