| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [adv] when | 861 |
|
| 2 | and then [conj] | 845 |
|
| 3 | and [adv] when | 837 |
|
| 4 | and then [subord] | 697 |
|
| 5 | [conj] then when | 392 |
|
| 6 | and then when | 342 |
|
| 7 | and then when | 342 |
|
