| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been [verb] [prep] | 1588 |
|
| 2 | to have been [vb pp] [prep] | 1532 |
|
| 3 | have been invented [prep] | 25 |
|
| 4 | [verb] been invented [prep] | 25 |
|
| 5 | [to-vb] been invented [prep] | 7 |
|
| 6 | to have been invent [prep] | 7 |
|
| 7 | to have [be] invented [prep] | 7 |
|
| 8 | to have [been] invented [prep] | 7 |
|
| 9 | to have be invented [prep] | 7 |
|
