| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [art] long time | 24 |
|
| 2 | had [be] a long time | 24 |
|
| 3 | had [been] [art] long time | 24 |
|
| 4 | had be [art] long time | 24 |
|
