| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been develop [prep] [det] [noun] | 10 |
|
| 2 | has been develop [prep] [det] [noun] | 10 |
|
| 3 | [vb -s] been developed [prep] [det] [noun] | 9 |
|
| 4 | [vb -s] been develop [prep] [det] [noun sg] | 6 |
|
| 5 | [vb -s] been develop in [det] [noun] | 5 |
|
| 6 | [vb -s] been develop in [det] [noun] | 5 |
|
