| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] for | 6384 |
|
| 2 | been [vb pp] for | 4628 |
|
| 3 | been developed [prep] | 407 |
|
| 4 | been developed [prep] | 407 |
|
| 5 | be developed for | 129 |
|
| 6 | [be] developed for | 129 |
|
| 7 | been develop for | 62 |
|
| 8 | been developed for | 56 |
|
| 9 | [been] developed for | 56 |
|
