| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be a [noun sg] [prep] [noun] [unc] | 617 |
|
| 2 | be [art] [noun sg] [prep] [noun pl] [unc] | 115 |
|
| 3 | be a [noun] [prep] [noun pl] [unc] | 64 |
|
| 4 | [be] a [noun sg] [prep] [noun pl] [unc] | 60 |
|
