| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [det] [noun sg] | 190 |
|
| 2 | it had been [det] | 52 |
|
| 3 | it had [det] [noun sg] | 52 |
|
| 4 | it had been [noun sg] | 44 |
|
