| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] [coord] [verb] [prep] | 227 |
|
| 2 | has been [vb pp] [coord] [verb] [prep] | 219 |
|
| 3 | [verb] been developed [coord] [verb] [prep] | 15 |
|
| 4 | have been developed [coord] [verb] [prep] | 15 |
|
| 5 | has been develop [coord] [verb] [prep] | 8 |
|
| 6 | has be developed [coord] [verb] [prep] | 8 |
|
| 7 | has [been] developed [coord] [verb] [prep] | 8 |
|
| 8 | has [be] developed [coord] [verb] [prep] | 8 |
|
| 9 | [vb -s] been developed [coord] [verb] [prep] | 8 |
|
| 10 | has been developed [coord] [verb] [prep] | 8 |
|
| 11 | has been developed [conj] [verb] [prep] | 8 |
|
