| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] [det] [noun] a | 283 |
|
| 2 | [be] [prep] [det] [noun] a | 283 |
|
| 3 | been [prep] [adj] [noun] a | 28 |
|
| 4 | been [prep] [det] [noun] [art] | 27 |
|
| 5 | [been] [prep] [det] [noun] a | 19 |
|
