| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [prep] three | 36 |
|
| 2 | been [verb] [prep] three years | 34 |
|
| 3 | had been [verb] [prep] years | 31 |
|
| 4 | had [verb] [prep] three years | 6 |
|
