| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been designed to be | 16 |
|
| 2 | have been designed to be | 16 |
|
| 3 | has been designed to be | 11 |
|
| 4 | [vb -s] been designed to be | 11 |
|
| 5 | been designed to be [adj] | 9 |
|
| 6 | been designed to be [adj] | 9 |
|
