| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [vb pp] [prep] a [adj] | 1799 |
|
| 2 | once [vb pp] [prep] a [adj] | 41 |
|
| 3 | [conj] once [vb pp] [prep] a | 9 |
|
| 4 | [conj] once [vb pp] a [adj] | 5 |
|
