| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been in [noun] for | 93 |
|
| 2 | had be in [noun sg] for | 72 |
|
| 3 | had be in [noun prp] for | 21 |
|
| 4 | had be in existence for | 6 |
|
| 5 | had be in existence for | 6 |
|
| 6 | had be in operation for | 5 |
|
| 7 | had be in operation for | 5 |
|
