| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] [prep] a [noun] | 1057 |
|
| 2 | has been [vb pp] [prep] a [noun] | 997 |
|
| 3 | has been developed [prep] [art] [noun] | 40 |
|
| 4 | has been developed [prep] [art] [noun] | 40 |
|
| 5 | [verb] been developed [prep] a [noun] | 26 |
|
| 6 | have been developed [prep] a [noun] | 26 |
|
| 7 | has been developed [prep] a [noun] | 13 |
|
| 8 | [vb -s] been developed [prep] a [noun] | 13 |
|
| 9 | has [been] developed [prep] a [noun] | 11 |
|
| 10 | has [be] developed [prep] a [noun] | 11 |
|
| 11 | has be developed [prep] a [noun] | 11 |
|
| 12 | has been develop [prep] a [noun] | 11 |
|
