| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] had [vb pp] [art] | 4252 |
|
| 2 | [noun prp] had been [vb pp] | 2417 |
|
| 3 | had been [vb pp] [art] | 671 |
|
| 4 | [noun prp] had been [art] | 488 |
|
