| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been used [verb] a [noun] | 11 |
|
| 2 | has be used [verb] a [noun] | 11 |
|
| 3 | [vb -s] be used [to-vb] a [noun] | 11 |
|
| 4 | [vb -s] be used [verb] a [noun sg] | 9 |
|
