| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have be used for [noun] | 7 |
|
| 2 | [modal v] [vb infin] be used for [noun] | 7 |
|
| 3 | [modal v] [verb] been used for [noun] | 7 |
|
| 4 | [modal v] have be used for [noun] | 7 |
|
| 5 | [vb mod] [verb] be used for [noun] | 7 |
|
| 6 | [modal v] [verb] be used for [noun sg] | 5 |
|
