| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [verb] by | 4142 |
|
| 2 | [vb past] be [vb pp] by | 4123 |
|
| 3 | [verb] be produced by | 98 |
|
| 4 | [vb past] be produced [prep] | 40 |
|
| 5 | [vb past] be produce by | 21 |
|
| 6 | [vb past] [be] produced by | 21 |
|
