| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a | 97579 |
|
| 2 | had [vb pp] [prep] | 31195 |
|
| 3 | had [vb pp] a | 8724 |
|
| 4 | had [prep] a | 157 |
|
