| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been placed | 413 |
|
| 2 | had be placed | 166 |
|
| 3 | has be placed | 129 |
|
| 4 | have be placed | 84 |
|
| 5 | have be placed | 19 |
|
| 6 | having be placed | 7 |
|
| 7 | to have be placed | 7 |
|
