| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [vb pp] in | 2897 |
|
| 2 | it be [vb pp] in | 2379 |
|
| 3 | it had be [vb pp] | 1541 |
|
| 4 | it had [vb pp] in | 174 |
|
| 5 | it had be in | 121 |
|
