| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] have been [vb pp] for use | 14 |
|
| 2 | [noun] has been [vb pp] for use | 10 |
|
| 3 | [noun] had been [vb pp] for use | 5 |
|
| 4 | [noun] have been [vb pp] for use | 5 |
|
| 5 | [noun pl] have been [vb pp] for use | 5 |
|
| 6 | [noun] have been developed for use | 5 |
|
