| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] by | 12687 |
|
| 2 | have been [vb pp] by | 12653 |
|
| 3 | have been produced [prep] | 209 |
|
| 4 | have been produced [prep] | 209 |
|
| 5 | have [be] produced by | 96 |
|
| 6 | [verb] been produced by | 96 |
|
| 7 | have be produced by | 96 |
|
| 8 | have [been] produced by | 96 |
|
| 9 | have been produced by | 96 |
|
| 10 | have been produce by | 96 |
|
