| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] been developed for | 8 |
|
| 2 | which [verb] be developed for | 8 |
|
| 3 | which have be developed for | 8 |
|
| 4 | which [vb base] be developed for | 5 |
|
| 5 | which have be developed for | 5 |
|
