| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] operated [prep] | 13 |
|
| 2 | have be operated [prep] | 13 |
|
| 3 | have [be] operated [prep] | 13 |
|
| 4 | have been operated [prep] | 13 |
|
| 5 | have [be] operated [prep] | 5 |
|
| 6 | have [be] operated by | 5 |
|
| 7 | had [be] operated [prep] | 5 |
|
| 8 | have [be] operated by | 5 |
|
