| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [adv] when | 861 |
|
| 2 | and once [conj] | 31 |
|
| 3 | [conj] once when | 16 |
|
| 4 | and once [subord] | 11 |
|
| 5 | and once when | 10 |
|
