| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [vb pp] [prep] [noun] | 16058 |
|
| 2 | had [been] [vb pp] [prep] | 15645 |
|
| 3 | had [vb pp] [prep] [noun] | 7593 |
|
| 4 | had [been] [prep] [noun] | 1251 |
|
| 5 | had [been] [vb pp] [noun] | 487 |
|
