| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have been developed [prep] [det] | 5 |
|
| 2 | [noun pl] [vb base] been developed [prep] [det] | 5 |
|
| 3 | [noun pl] have been developed [prep] [det] | 5 |
|
