| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] developed [adv] [prep] [noun] | 9 |
|
| 2 | [been] develop [adv] [prep] [noun] | 9 |
|
| 3 | been develop [adv] [prep] [noun] | 9 |
|
| 4 | [been] develop [adv] [prep] [noun prp] | 6 |
|
