| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] then can we [vb infin] | 17 |
|
| 2 | only then can we [vb infin] | 13 |
|
| 3 | only then can we [vb infin] | 13 |
|
| 4 | [adv] then can we [vb infin] | 13 |
|
