| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [prep] [noun] | 1385 |
|
| 2 | been develop [prep] [noun] | 142 |
|
| 3 | [vb past] been develop [prep] | 51 |
|
| 4 | [vb past] develop [prep] [noun] | 30 |
|
