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