| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [been] an [noun] | 113 |
|
| 2 | [verb] once [been] [art] [noun] | 86 |
|
| 3 | [verb] once [been] [art] [noun] | 86 |
|
| 4 | [verb] once [been] a [noun] | 54 |
|
| 5 | [verb] once [be] an [noun] | 5 |
|
