| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [prep] [art] [noun] | 560 |
|
| 2 | been developed [prep] [art] [noun] | 94 |
|
| 3 | has been developed [prep] [noun] | 70 |
|
| 4 | has been developed [prep] [art] | 68 |
|
| 5 | has developed [prep] [art] [noun] | 54 |
|
