| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] for | 1650 |
|
| 2 | has been [vb pp] for | 1373 |
|
| 3 | has been developed [prep] | 174 |
|
| 4 | has been developed [prep] | 174 |
|
| 5 | have been developed for | 53 |
|
| 6 | [verb] been developed for | 53 |
|
| 7 | has been develop for | 23 |
|
| 8 | [vb -s] been developed for | 21 |
|
| 9 | has [been] developed for | 21 |
|
| 10 | has [be] developed for | 21 |
|
| 11 | has been developed for | 21 |
|
| 12 | has be developed for | 21 |
|
