| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [prep] [det] | 171 |
|
| 2 | [been] [prep] [det] year | 41 |
|
| 3 | had [prep] [det] year | 29 |
|
| 4 | had [been] [prep] year | 6 |
|
