| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [modal v] [be] [prep] a [noun] | 287 |
|
| 2 | [pers pn] [modal v] [be] at [art] [noun] | 124 |
|
| 3 | [pron] [modal v] [be] at a [noun] | 16 |
|
