| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been develop [prep] | 56 |
|
| 2 | have been develop [prep] [det] | 30 |
|
| 3 | which have been [prep] [det] | 5 |
|
| 4 | which have develop [prep] [det] | 5 |
|
