| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [been] [noun] | 847 |
|
| 2 | once [vb infin] [been] | 69 |
|
| 3 | once [been] [noun] | 41 |
|
| 4 | once [vb infin] [noun] | 7 |
|
