| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been a [noun] [noun] | 722 |
|
| 2 | [be] a [n mass] [noun] | 302 |
|
| 3 | be a [n mass] [noun] | 302 |
|
| 4 | been [art] [n mass] [noun] | 18 |
|
| 5 | [been] a [n mass] [noun] | 17 |
|
