| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] used at [art] [noun] | 13 |
|
| 2 | [modal v] be used at [art] [noun] | 13 |
|
| 3 | [modal v] be used at [art] [noun] | 13 |
|
| 4 | [modal v] [be] used at [art] [noun] | 13 |
|
| 5 | [modal v] [be] used at [art] [noun sg] | 11 |
|
| 6 | [modal v] [be] used at the [noun] | 9 |
|
| 7 | may [be] used at [art] [noun] | 6 |
|
| 8 | may [be] used at [art] [noun] | 6 |
|
