| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been developed for [adj] [noun] | 7 |
|
| 2 | have been developed for [adj] [noun] | 7 |
|
| 3 | have been developed for [adj] [noun] | 5 |
|
| 4 | [vb base] been developed for [adj] [noun] | 5 |
|
